#2B588A
Closest named color: Light Navy Blue (#2E5A88). oklch(45.3% 0.096 252.8), rgb(43, 88, 138).
Aa
White text reads best on this color (7.32:1).
About this color
#2B588A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.096 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.008 away. White text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #2B588A |
| RGB | rgb(43, 88, 138) |
| HSL | hsl(212, 52%, 35%) |
| OKLCH | oklch(45.3% 0.096 252.8) |
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 #2B588A | 7.32:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #2B588A | 2.86:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #2B588A text on white | 7.32:1 | AAA | Lc 85.2 | Fine for body text |
| #2B588A text on black | 2.86:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CBDBEE
oklch(88.5% 0.031 252.7)
-
Step 300
300
#A7C3E5
oklch(80.8% 0.057 253.4)
-
Step 400
400
#78A4D8
oklch(70.7% 0.09 253.1)
-
Step 500
500
#548CCD
oklch(63% 0.115 253.2)
-
Step 600
600
#3775BA
oklch(55.5% 0.125 253.1)
-
Step 700
700
#2962A0
oklch(49% 0.116 252.9)
-
Step 800
800 (this color)
#2B588A
oklch(45.3% 0.096 252.8)
-
Step 900
900
#224368
oklch(37.7% 0.075 252.8)
-
Step 950
950
#15273D
oklch(26.9% 0.048 254.2)
#2B588A 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) | #425B8C | 0.028 |
| Deuteranopia (no green cones) | #345289 | 0.018 |
| Tritanopia (no blue cones) | #00646A | 0.077 |
| Achromatopsia (no color) | #565656 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B588A
#2B588A
oklch(45.3% 0.096 252.8)
- #764C01
#764C01
oklch(45.3% 0.096 72.8)
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 #2B588A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.008
- Dusk Blue #26538D ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.024
- Deep Sea Blue #015482 ΔE 0.032
- Light Navy #155084 ΔE 0.033
- Denim #3B638C ΔE 0.039
- YInMn Blue #415A77 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.042
Use #2B588A 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.