#2A5B8A
Closest named color: Light Navy Blue (#2E5A88). oklch(46% 0.093 249.7), rgb(42, 91, 138).
Aa
White text reads best on this color (7.09:1).
About this color
#2A5B8A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.093 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.005 away. White text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.96:1 |
| White text | 7.09:1 |
Values
| HEX | #2A5B8A |
| RGB | rgb(42, 91, 138) |
| HSL | hsl(209, 53%, 35%) |
| OKLCH | oklch(46% 0.093 249.7) |
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 #2A5B8A | 7.09:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #2A5B8A | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #2A5B8A text on white | 7.09:1 | AAA | Lc 84.3 | Fine for body text |
| #2A5B8A text on black | 2.96:1 | Fails | Lc -17.6 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#ABC4DD
oklch(81% 0.045 248.4)
-
Step 400
400
#7EA5CC
oklch(70.8% 0.072 248.9)
-
Step 500
500
#5C8EBF
oklch(63.2% 0.092 249)
-
Step 600
600
#4177AC
oklch(55.6% 0.101 249.7)
-
Step 700
700 (this color)
#2A5B8A
oklch(46% 0.093 249.7)
-
Step 800
800
#2B5278
oklch(42.8% 0.078 249.5)
-
Step 900
900
#274460
oklch(37.7% 0.06 248.9)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#2A5B8A 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) | #465D8C | 0.032 |
| Deuteranopia (no green cones) | #395489 | 0.023 |
| Tritanopia (no blue cones) | #00666C | 0.071 |
| Achromatopsia (no color) | #585858 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5B8A
#2A5B8A
oklch(46% 0.093 249.7)
- #794D0E
#794D0E
oklch(46% 0.094 69.4)
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 #2A5B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.005
- Denim Blue #3B5B92 ΔE 0.023
- Dusk Blue #26538D ΔE 0.026
- Denim #3B638C ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.036
- Peacock Blue #016795 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.039
Use #2A5B8A 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.