#77B9DA
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.4% 0.082 231), rgb(119, 185, 218).
Aa
Black text reads best on this color (9.73:1).
About this color
#77B9DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.082 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.045 away. Black text reads best on it, at 9.73:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.73:1 |
| White text | 2.15:1 |
Values
| HEX | #77B9DA |
| RGB | rgb(119, 185, 218) |
| HSL | hsl(200, 57%, 66%) |
| OKLCH | oklch(75.4% 0.082 231) |
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 #77B9DA | 2.15:1 | Fails | Lc -47.0 | Large or bold text, headings |
| Black text on #77B9DA | 9.73:1 | AAA | Lc 61.7 | Content text, not long reading |
| #77B9DA text on white | 2.15:1 | Fails | Lc 42.3 | Non-text elements, placeholder text |
| #77B9DA text on black | 9.73:1 | AAA | Lc -59.9 | 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 400.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#A0C7DC
oklch(80.8% 0.051 231.7)
-
Step 400
400 (this color)
#77B9DA
oklch(75.4% 0.082 231)
-
Step 500
500
#3894BD
oklch(63% 0.105 231.2)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#0F485F
oklch(37.8% 0.068 230.3)
-
Step 950
950
#0C2A38
oklch(27% 0.044 231.9)
#77B9DA 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) | #A9B7DC | 0.058 |
| Deuteranopia (no green cones) | #9BACDA | 0.051 |
| Tritanopia (no blue cones) | #4AC2C4 | 0.060 |
| Achromatopsia (no color) | #B0B0B0 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #77B9DA
#77B9DA
oklch(75.4% 0.082 231)
- #DAA07F
#DAA07F
oklch(75.3% 0.083 50.7)
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 #77B9DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.051
- Carolina Blue #8AB8FE ΔE 0.060
- Sky #82CAFC ΔE 0.061
- Sky Blue #87CEEB ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.067
Use #77B9DA 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.