#2B5B8A
Closest named color: Light Navy Blue (#2E5A88). oklch(46.1% 0.093 250.1), rgb(43, 91, 138).
Aa
White text reads best on this color (7.07:1).
About this color
#2B5B8A 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 0.004 away. White text reads best on it, at 7.07:1.
| 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 | 7.07:1 |
Values
| HEX | #2B5B8A |
| RGB | rgb(43, 91, 138) |
| HSL | hsl(210, 52%, 35%) |
| OKLCH | oklch(46.1% 0.093 250.1) |
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 #2B5B8A | 7.07:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #2B5B8A | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #2B5B8A text on white | 7.07:1 | AAA | Lc 84.3 | Fine for body text |
| #2B5B8A text on black | 2.96:1 | Fails | Lc -17.7 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ABC3DD
oklch(80.8% 0.045 250.5)
-
Step 400
400
#7EA4CC
oklch(70.6% 0.072 250.2)
-
Step 500
500
#5D8DBF
oklch(63% 0.092 250.4)
-
Step 600
600
#4277AC
oklch(55.6% 0.101 250.1)
-
Step 700
700 (this color)
#2B5B8A
oklch(46.1% 0.093 250.1)
-
Step 800
800
#2C5278
oklch(42.9% 0.077 250.1)
-
Step 900
900
#284460
oklch(37.8% 0.059 249.6)
-
Step 950
950
#182838
oklch(27.1% 0.037 249.3)
#2B5B8A 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 | 0.031 |
| Deuteranopia (no green cones) | #395489 | 0.023 |
| Tritanopia (no blue cones) | #00666C | 0.072 |
| Achromatopsia (no color) | #585858 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5B8A
#2B5B8A
oklch(46.1% 0.093 250.1)
- #794E0F
#794E0F
oklch(46.2% 0.093 70.3)
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 #2B5B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.004
- Denim Blue #3B5B92 ΔE 0.022
- Dusk Blue #26538D ΔE 0.026
- Denim #3B638C ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Peacock Blue #016795 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.038
Use #2B5B8A 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.