#2B536A
Closest named color: YInMn Blue (#415A77). oklch(42.3% 0.059 235.7), rgb(43, 83, 106).
Aa
White text reads best on this color (8.24:1).
About this color
#2B536A is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.059 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.040 away. White text reads best on it, at 8.24:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #2B536A |
| RGB | rgb(43, 83, 106) |
| HSL | hsl(202, 42%, 29%) |
| OKLCH | oklch(42.3% 0.059 235.7) |
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 #2B536A | 8.24:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #2B536A | 2.54:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #2B536A text on white | 8.24:1 | AAA | Lc 88.3 | Fine for body text |
| #2B536A text on black | 2.54:1 | Fails | Lc -13.8 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#ACC5D4
oklch(81% 0.034 234.2)
-
Step 400
400
#7FA7BF
oklch(70.8% 0.056 234.9)
-
Step 500
500
#5E90AF
oklch(63% 0.071 236.7)
-
Step 600
600
#437A9A
oklch(55.5% 0.077 235.9)
-
Step 700
700
#346784
oklch(49.1% 0.072 235.7)
-
Step 800
800 (this color)
#2B536A
oklch(42.3% 0.059 235.7)
-
Step 900
900
#284657
oklch(37.8% 0.046 234.7)
-
Step 950
950
#182933
oklch(27.1% 0.029 235.2)
#2B536A 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) | #48526B | 0.036 |
| Deuteranopia (no green cones) | #3F4C6A | 0.030 |
| Tritanopia (no blue cones) | #00595B | 0.045 |
| Achromatopsia (no color) | #4F4F4F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B536A
#2B536A
oklch(42.3% 0.059 235.7)
- #67452D
#67452D
oklch(42.3% 0.06 55.6)
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 #2B536A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.040
- Deep Teal #00555A ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.044
- Light Navy #155084 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.051
Use #2B536A 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.