#678CD7
Closest named color: Soft Blue (#6488EA). oklch(64.5% 0.12 263.4), rgb(103, 140, 215).
Aa
Black text reads best on this color (6.30:1).
About this color
#678CD7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.120 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.033 away. Black text reads best on it, at 6.30:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.30:1 |
| White text | 3.32:1 |
Values
| HEX | #678CD7 |
| RGB | rgb(103, 140, 215) |
| HSL | hsl(220, 58%, 62%) |
| OKLCH | oklch(64.5% 0.12 263.4) |
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 #678CD7 | 3.32:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #678CD7 | 6.30:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #678CD7 text on white | 3.32:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #678CD7 text on black | 6.30:1 | AA | Lc -41.1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ADC1E8
oklch(80.9% 0.06 263.7)
-
Step 400
400
#82A0DC
oklch(70.7% 0.095 263.7)
-
Step 500
500 (this color)
#678CD7
oklch(64.5% 0.12 263.4)
-
Step 600
600
#4A70BF
oklch(55.6% 0.13 263.4)
-
Step 700
700
#3B5DA5
oklch(49% 0.122 263.5)
-
Step 800
800
#314D86
oklch(42.8% 0.101 263.1)
-
Step 900
900
#2B406B
oklch(37.6% 0.079 263.4)
-
Step 950
950
#1A263F
oklch(27.1% 0.05 263.9)
#678CD7 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) | #6F92DA | 0.020 |
| Deuteranopia (no green cones) | #6188D5 | 0.014 |
| Tritanopia (no blue cones) | #2F9CA7 | 0.108 |
| Achromatopsia (no color) | #8D8D8D | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #678CD7
#678CD7
oklch(64.5% 0.12 263.4)
- #B18624
#B18624
oklch(64.5% 0.121 83.1)
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 #678CD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.033
- Cornflower Blue #6495ED ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.036
- Faded Blue #658CBB ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.045
- Perrywinkle #8F8CE7 ΔE 0.058
- Cool Blue #4984B8 ΔE 0.062
- Dusty Blue #5A86AD ΔE 0.067
Use #678CD7 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.