#3D77A2
Closest named color: Dull Blue (#49759C). oklch(54.9% 0.091 242.9), rgb(61, 119, 162).
Aa
White text reads best on this color (4.81:1).
About this color
#3D77A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.091 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.014 away. White text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #3D77A2 |
| RGB | rgb(61, 119, 162) |
| HSL | hsl(206, 45%, 44%) |
| OKLCH | oklch(54.9% 0.091 242.9) |
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 #3D77A2 | 4.81:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #3D77A2 | 4.35:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #3D77A2 text on white | 4.81:1 | AA | Lc 73.2 | Content text, not long reading |
| #3D77A2 text on black | 4.35:1 | AA large text | Lc -28.5 | 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
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4D9
oklch(80.8% 0.04 243.6)
-
Step 400
400
#7DA6C7
oklch(70.7% 0.066 243.1)
-
Step 500
500
#5B8FB8
oklch(63% 0.083 243.4)
-
Step 600
600 (this color)
#3D77A2
oklch(54.9% 0.091 242.9)
-
Step 700
700
#31668D
oklch(49.2% 0.084 243)
-
Step 800
800
#295372
oklch(42.6% 0.07 242.8)
-
Step 900
900
#26455C
oklch(37.7% 0.054 242.2)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#3D77A2 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) | #6478A4 | 0.044 |
| Deuteranopia (no green cones) | #566DA1 | 0.036 |
| Tritanopia (no blue cones) | #008286 | 0.070 |
| Achromatopsia (no color) | #727272 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D77A2
#3D77A2
oklch(54.9% 0.091 242.9)
- #976535
#976535
oklch(55% 0.091 62.8)
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 #3D77A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.014
- Flat Blue #3C73A8 ΔE 0.017
- Muted Blue #3B719F ΔE 0.018
- Cerulean #457B9D ΔE 0.018
- Stormy Blue #507B9C ΔE 0.026
- Nice Blue #107AB0 ΔE 0.030
- Metallic Blue #4F738E ΔE 0.033
- Ocean Blue #03719C ΔE 0.039
Use #3D77A2 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.