#2E77A9
Closest named color: Flat Blue (#3C73A8). oklch(54.7% 0.106 242.4), rgb(46, 119, 169).
Aa
White text reads best on this color (4.85:1).
About this color
#2E77A9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.106 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.014 away. White text reads best on it, at 4.85:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #2E77A9 |
| RGB | rgb(46, 119, 169) |
| HSL | hsl(204, 57%, 42%) |
| OKLCH | oklch(54.7% 0.106 242.4) |
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 #2E77A9 | 4.85:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #2E77A9 | 4.32:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #2E77A9 text on white | 4.85:1 | AA | Lc 73.3 | Content text, not long reading |
| #2E77A9 text on black | 4.32:1 | AA large text | Lc -28.3 | Dividers and decoration only |
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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCEA
oklch(88.6% 0.027 242.8)
-
Step 300
300
#A7C5DD
oklch(80.9% 0.047 242.4)
-
Step 400
400
#76A7CD
oklch(70.8% 0.077 242.4)
-
Step 500
500
#5090BF
oklch(63% 0.097 242.3)
-
Step 600
600 (this color)
#2E77A9
oklch(54.7% 0.106 242.4)
-
Step 700
700
#236694
oklch(49.1% 0.099 242.9)
-
Step 800
800
#1F5478
oklch(42.8% 0.082 242)
-
Step 900
900
#204560
oklch(37.6% 0.063 242.6)
-
Step 950
950
#132938
oklch(27% 0.04 240.2)
#2E77A9 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) | #6078AB | 0.051 |
| Deuteranopia (no green cones) | #4F6CA8 | 0.040 |
| Tritanopia (no blue cones) | #008389 | 0.073 |
| Achromatopsia (no color) | #717171 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E77A9
#2E77A9
oklch(54.7% 0.106 242.4)
- #9C6125
#9C6125
oklch(54.7% 0.106 62.3)
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 #2E77A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.014
- Nice Blue #107AB0 ΔE 0.016
- Muted Blue #3B719F ΔE 0.021
- Dull Blue #49759C ΔE 0.028
- Cerulean #457B9D ΔE 0.031
- Ocean Blue #03719C ΔE 0.034
- Windows Blue #3778BF ΔE 0.036
- French Blue #436BAD ΔE 0.038
Use #2E77A9 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.