#2D5372
Closest named color: YInMn Blue (#415A77). oklch(42.8% 0.068 244.9), rgb(45, 83, 114).
Aa
White text reads best on this color (8.10:1).
About this color
#2D5372 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.068 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.034 away. White text reads best on it, at 8.10:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #2D5372 |
| RGB | rgb(45, 83, 114) |
| HSL | hsl(207, 43%, 31%) |
| OKLCH | oklch(42.8% 0.068 244.9) |
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 #2D5372 | 8.10:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #2D5372 | 2.59:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #2D5372 text on white | 8.10:1 | AAA | Lc 87.9 | Fine for body text |
| #2D5372 text on black | 2.59:1 | Fails | Lc -14.2 | Not readable |
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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300
#ACC4D9
oklch(80.9% 0.04 244.7)
-
Step 400
400
#80A5C6
oklch(70.7% 0.063 245.8)
-
Step 500
500
#5E8FB7
oklch(63.1% 0.08 244.2)
-
Step 600
600
#4478A3
oklch(55.5% 0.087 245.2)
-
Step 700
700
#35658C
oklch(49.1% 0.082 245.1)
-
Step 800
800 (this color)
#2D5372
oklch(42.8% 0.068 244.9)
-
Step 900
900
#28445C
oklch(37.6% 0.054 245.7)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#2D5372 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) | #465473 | 0.032 |
| Deuteranopia (no green cones) | #3C4D71 | 0.023 |
| Tritanopia (no blue cones) | #005A5E | 0.054 |
| Achromatopsia (no color) | #505050 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5372
#2D5372
oklch(42.8% 0.068 244.9)
- #694725
#694725
oklch(42.8% 0.067 64.3)
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 #2D5372, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.035
- Light Navy #155084 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.038
- Dusk Blue #26538D ΔE 0.045
- Petrol #005F6A ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.051
- Dusk #4E5481 ΔE 0.051
Use #2D5372 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.