#2D5B77
Closest named color: YInMn Blue (#415A77). oklch(45.1% 0.068 237.6), rgb(45, 91, 119).
Aa
White text reads best on this color (7.30:1).
About this color
#2D5B77 is a medium-dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.068 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.022 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #2D5B77 |
| RGB | rgb(45, 91, 119) |
| HSL | hsl(203, 45%, 32%) |
| OKLCH | oklch(45.1% 0.068 237.6) |
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 #2D5B77 | 7.30:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #2D5B77 | 2.87:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #2D5B77 text on white | 7.30:1 | AAA | Lc 85.2 | Fine for body text |
| #2D5B77 text on black | 2.87:1 | Fails | Lc -16.8 | 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 800.
-
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
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#7BA7C4
oklch(70.7% 0.064 237.7)
-
Step 500
500
#5791B5
oklch(63.1% 0.082 237.2)
-
Step 600
600
#3B7BA1
oklch(55.7% 0.088 237.3)
-
Step 700
700
#2C678A
oklch(49.1% 0.083 237.9)
-
Step 800
800 (this color)
#2D5B77
oklch(45.1% 0.068 237.6)
-
Step 900
900
#24465A
oklch(37.8% 0.052 236.3)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#2D5B77 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) | #4E5B78 | 0.040 |
| Deuteranopia (no green cones) | #445377 | 0.034 |
| Tritanopia (no blue cones) | #006264 | 0.051 |
| Achromatopsia (no color) | #565656 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5B77
#2D5B77
oklch(45.1% 0.068 237.6)
- #724C2E
#724C2E
oklch(45.2% 0.068 58.2)
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 #2D5B77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.030
- Petrol #005F6A ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.042
- Denim #3B638C ΔE 0.043
- Dusty Grape #545775 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.049
- Dusk Blue #26538D ΔE 0.049
Use #2D5B77 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.