#677BE8
Closest named color: Cornflower (#6A79F7). oklch(62.1% 0.165 272.9), rgb(103, 123, 232).
Aa
Black text reads best on this color (5.57:1).
About this color
#677BE8 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.165 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.024 away. Black text reads best on it, at 5.57:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #677BE8 |
| RGB | rgb(103, 123, 232) |
| HSL | hsl(231, 74%, 66%) |
| OKLCH | oklch(62.1% 0.165 272.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #677BE8 | 3.76:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #677BE8 | 5.57:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #677BE8 text on white | 3.76:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #677BE8 text on black | 5.57:1 | AA | Lc -36.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF5
oklch(80.9% 0.08 272.7)
-
Step 400
400
#869AF1
oklch(70.7% 0.129 272.9)
-
Step 500
500 (this color)
#677BE8
oklch(62.1% 0.165 272.9)
-
Step 600
600
#5365DA
oklch(55.6% 0.179 272.6)
-
Step 700
700
#4453BD
oklch(49.1% 0.166 272.7)
-
Step 800
800
#384499
oklch(42.6% 0.138 273)
-
Step 900
900
#303B7A
oklch(37.8% 0.107 272.8)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#677BE8 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4789EC | 0.044 |
| Deuteranopia (no green cones) | #367EE6 | 0.048 |
| Tritanopia (no blue cones) | #1B93A6 | 0.146 |
| Achromatopsia (no color) | #838383 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677BE8
#677BE8
oklch(62.1% 0.165 272.9)
- #A18300
#A18300
oklch(62% 0.127 92.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #677BE8, closest first.
No curated palette has a color within ΔE 0.04 of #677BE8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.024
- Soft Blue #6488EA ΔE 0.033
- Medium Slate Blue #7B68EE ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
- Lavender Blue #8B88F8 ΔE 0.065
- Clear Blue #247AFD ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.066
- Periwinkle #8E82FE ΔE 0.066
Use #677BE8 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.