#2D77AE
Closest named color: Nice Blue (#107AB0). oklch(54.9% 0.112 244.6), rgb(45, 119, 174).
Aa
White text reads best on this color (4.81:1).
About this color
#2D77AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.112 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.014 away. White text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.36:1 |
| White text | 4.81:1 |
Values
| HEX | #2D77AE |
| RGB | rgb(45, 119, 174) |
| HSL | hsl(206, 59%, 43%) |
| OKLCH | oklch(54.9% 0.112 244.6) |
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 #2D77AE | 4.81:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #2D77AE | 4.36:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #2D77AE text on white | 4.81:1 | AA | Lc 73.1 | Content text, not long reading |
| #2D77AE text on black | 4.36:1 | AA large text | Lc -28.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A6C5E0
oklch(81% 0.051 244.8)
-
Step 400
400
#75A6D0
oklch(70.6% 0.081 245.2)
-
Step 500
500
#4F90C4
oklch(63.2% 0.103 244.6)
-
Step 600
600 (this color)
#2D77AE
oklch(54.9% 0.112 244.6)
-
Step 700
700
#216697
oklch(49.2% 0.103 244.1)
-
Step 800
800
#1E537B
oklch(42.7% 0.087 244.9)
-
Step 900
900
#1F4563
oklch(37.8% 0.067 244.8)
-
Step 950
950
#13283A
oklch(26.9% 0.043 246.2)
#2D77AE 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) | #5E79B0 | 0.049 |
| Deuteranopia (no green cones) | #4C6DAD | 0.036 |
| Tritanopia (no blue cones) | #00848B | 0.078 |
| Achromatopsia (no color) | #727272 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D77AE
#2D77AE
oklch(54.9% 0.112 244.6)
- #9E621B
#9E621B
oklch(55.1% 0.112 64.9)
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 #2D77AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.014
- Flat Blue #3C73A8 ΔE 0.015
- Muted Blue #3B719F ΔE 0.026
- Windows Blue #3778BF ΔE 0.028
- Dull Blue #49759C ΔE 0.034
- French Blue #436BAD ΔE 0.036
- Cerulean #457B9D ΔE 0.037
- Ocean Blue #03719C ΔE 0.039
Use #2D77AE 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.