#2B576E
Closest named color: YInMn Blue (#415A77). oklch(43.6% 0.062 233.4), rgb(43, 87, 110).
Aa
White text reads best on this color (7.80:1).
About this color
#2B576E is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.062 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #2B576E |
| RGB | rgb(43, 87, 110) |
| HSL | hsl(201, 44%, 30%) |
| OKLCH | oklch(43.6% 0.062 233.4) |
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 #2B576E | 7.80:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #2B576E | 2.69:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #2B576E text on white | 7.80:1 | AAA | Lc 86.9 | Fine for body text |
| #2B576E text on black | 2.69:1 | Fails | Lc -15.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D5
oklch(80.9% 0.036 234.9)
-
Step 400
400
#7DA7BF
oklch(70.6% 0.057 233.7)
-
Step 500
500
#5A91AF
oklch(63% 0.074 233.5)
-
Step 600
600
#3E7B9B
oklch(55.6% 0.08 233.7)
-
Step 700
700
#306884
oklch(49.2% 0.074 232.8)
-
Step 800
800 (this color)
#2B576E
oklch(43.6% 0.062 233.4)
-
Step 900
900
#264657
oklch(37.7% 0.048 233.2)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#2B576E 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) | #4C566F | 0.040 |
| Deuteranopia (no green cones) | #434F6E | 0.035 |
| Tritanopia (no blue cones) | #005D5F | 0.044 |
| Achromatopsia (no color) | #525252 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B576E
#2B576E
oklch(43.6% 0.062 233.4)
- #6C4830
#6C4830
oklch(43.6% 0.061 54.1)
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 #2B576E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Petrol #005F6A ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.043
- Deep Teal #00555A ΔE 0.045
- Light Navy #155084 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.051
- Dusty Grape #545775 ΔE 0.055
Use #2B576E 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.