#2A5072
Closest named color: Deep Sea Blue (#015482). oklch(41.9% 0.072 247.4), rgb(42, 80, 114).
Aa
White text reads best on this color (8.43:1).
About this color
#2A5072 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.072 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.032 away. White text reads best on it, at 8.43:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #2A5072 |
| RGB | rgb(42, 80, 114) |
| HSL | hsl(208, 46%, 31%) |
| OKLCH | oklch(41.9% 0.072 247.4) |
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 #2A5072 | 8.43:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #2A5072 | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #2A5072 text on white | 8.43:1 | AAA | Lc 88.9 | Fine for body text |
| #2A5072 text on black | 2.48:1 | Fails | Lc -13.3 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ACC4DB
oklch(81% 0.042 247.2)
-
Step 400
400
#7FA5C9
oklch(70.7% 0.067 247.4)
-
Step 500
500
#5E8EBB
oklch(63.1% 0.086 247.8)
-
Step 600
600
#4378A7
oklch(55.7% 0.093 247.1)
-
Step 700
700
#34658F
oklch(49.2% 0.086 246.6)
-
Step 800
800 (this color)
#2A5072
oklch(41.9% 0.072 247.4)
-
Step 900
900
#28445E
oklch(37.7% 0.056 247.8)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#2A5072 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) | #415174 | 0.029 |
| Deuteranopia (no green cones) | #384A71 | 0.022 |
| Tritanopia (no blue cones) | #00585C | 0.057 |
| Achromatopsia (no color) | #4D4D4D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5072
#2A5072
oklch(41.9% 0.072 247.4)
- #67451D
#67451D
oklch(42% 0.072 67.9)
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 #2A5072, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.032
- Light Navy #155084 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.043
- YInMn Blue #415A77 ΔE 0.044
- Dusk Blue #26538D ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.045
- Twilight Blue #0A437A ΔE 0.054
- Petrol #005F6A ΔE 0.055
Use #2A5072 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.