#679CBC
Closest named color: Greyblue (#77A1B5). oklch(66.8% 0.074 235.9), rgb(103, 156, 188).
Aa
Black text reads best on this color (7.05:1).
About this color
#679CBC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.074 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.027 away. Black text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #679CBC |
| RGB | rgb(103, 156, 188) |
| HSL | hsl(203, 39%, 57%) |
| OKLCH | oklch(66.8% 0.074 235.9) |
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 #679CBC | 2.97:1 | Fails | Lc -61.6 | Content text, not long reading |
| Black text on #679CBC | 7.05:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #679CBC text on white | 2.97:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #679CBC text on black | 7.05:1 | AAA | Lc -45.5 | Large or bold text, headings |
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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE5
oklch(88.6% 0.02 233.9)
-
Step 300
300
#ABC5D5
oklch(80.9% 0.036 234.9)
-
Step 400
400
#7EA7C0
oklch(70.7% 0.058 235.4)
-
Step 500
500 (this color)
#679CBC
oklch(66.8% 0.074 235.9)
-
Step 600
600
#407B9C
oklch(55.7% 0.08 235.2)
-
Step 700
700
#326785
oklch(49.1% 0.074 235.8)
-
Step 800
800
#2A546C
oklch(42.6% 0.062 235.8)
-
Step 900
900
#274658
oklch(37.8% 0.048 235.5)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#679CBC 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) | #8D9BBE | 0.046 |
| Deuteranopia (no green cones) | #8192BC | 0.039 |
| Tritanopia (no blue cones) | #42A4A6 | 0.057 |
| Achromatopsia (no color) | #969696 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #679CBC
#679CBC
oklch(66.8% 0.074 235.9)
- #B88968
#B88968
oklch(66.8% 0.074 56.2)
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 #679CBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.027
- Silver Lake Blue #778DA9 ΔE 0.044
- Bluegrey #85A3B2 ΔE 0.046
- Faded Blue #658CBB ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.047
- Cool Gray #8D99AE ΔE 0.047
- Blue Grey #758DA3 ΔE 0.048
Use #679CBC 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.