#677BE7
Closest named color: Cornflower (#6A79F7). oklch(62% 0.163 272.9), rgb(103, 123, 231).
Aa
Black text reads best on this color (5.56:1).
About this color
#677BE7 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.163 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.025 away. Black text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #677BE7 |
| RGB | rgb(103, 123, 231) |
| HSL | hsl(231, 73%, 65%) |
| OKLCH | oklch(62% 0.163 272.9) |
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 #677BE7 | 3.77:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #677BE7 | 5.56:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #677BE7 text on white | 3.77:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #677BE7 text on black | 5.56:1 | AA | Lc -36.6 | 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
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AFBEF5
oklch(80.9% 0.08 272.7)
-
Step 400
400
#869AF0
oklch(70.7% 0.128 272.8)
-
Step 500
500 (this color)
#677BE7
oklch(62% 0.163 272.9)
-
Step 600
600
#5465D9
oklch(55.6% 0.177 273)
-
Step 700
700
#4553BC
oklch(49.1% 0.164 273)
-
Step 800
800
#384598
oklch(42.8% 0.136 272.6)
-
Step 900
900
#303B79
oklch(37.8% 0.106 272.8)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#677BE7 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) | #4889EB | 0.044 |
| Deuteranopia (no green cones) | #377EE5 | 0.047 |
| Tritanopia (no blue cones) | #1D93A6 | 0.145 |
| Achromatopsia (no color) | #838383 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #677BE7
#677BE7
oklch(62% 0.163 272.9)
- #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 #677BE7, closest first.
No curated palette has a color within ΔE 0.04 of #677BE7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.025
- Soft Blue #6488EA ΔE 0.033
- Medium Slate Blue #7B68EE ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
- Lavender Blue #8B88F8 ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.066
- Clear Blue #247AFD ΔE 0.066
- Medium Purple #9370DB ΔE 0.067
Use #677BE7 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.