#2B5983
Closest named color: Light Navy Blue (#2E5A88). oklch(45.2% 0.086 248.3), rgb(43, 89, 131).
Aa
White text reads best on this color (7.34:1).
About this color
#2B5983 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.086 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.009 away. White text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.85:1 |
| White text | 7.34:1 |
Values
| HEX | #2B5983 |
| RGB | rgb(43, 89, 131) |
| HSL | hsl(209, 51%, 34%) |
| OKLCH | oklch(45.2% 0.086 248.3) |
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 #2B5983 | 7.34:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #2B5983 | 2.85:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #2B5983 text on white | 7.34:1 | AAA | Lc 85.3 | Fine for body text |
| #2B5983 text on black | 2.85:1 | Fails | Lc -16.7 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A8C4E0
oklch(80.9% 0.05 248.4)
-
Step 400
400
#79A5D1
oklch(70.7% 0.08 249)
-
Step 500
500
#558EC5
oklch(63.1% 0.103 248.9)
-
Step 600
600
#3878B1
oklch(55.7% 0.111 248.1)
-
Step 700
700
#296498
oklch(49% 0.104 248.3)
-
Step 800
800 (this color)
#2B5983
oklch(45.2% 0.086 248.3)
-
Step 900
900
#224463
oklch(37.6% 0.067 248)
-
Step 950
950
#15283A
oklch(27% 0.042 248.4)
#2B5983 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) | #475B85 | 0.033 |
| Deuteranopia (no green cones) | #3B5282 | 0.025 |
| Tritanopia (no blue cones) | #006368 | 0.066 |
| Achromatopsia (no color) | #565656 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5983
#2B5983
oklch(45.2% 0.086 248.3)
- #754C18
#754C18
oklch(45.3% 0.086 68.3)
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 #2B5983, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.009
- Dusk Blue #26538D ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.031
- YInMn Blue #415A77 ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.031
- Light Navy #155084 ΔE 0.035
- Denim #3B638C ΔE 0.037
- Dusk #4E5481 ΔE 0.042
Use #2B5983 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.