#2B5D72
Closest named color: YInMn Blue (#415A77). oklch(45.3% 0.064 228.1), rgb(43, 93, 114).
Aa
White text reads best on this color (7.21:1).
About this color
#2B5D72 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.064 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #2B5D72 |
| RGB | rgb(43, 93, 114) |
| HSL | hsl(198, 45%, 31%) |
| OKLCH | oklch(45.3% 0.064 228.1) |
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 #2B5D72 | 7.21:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #2B5D72 | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #2B5D72 text on white | 7.21:1 | AAA | Lc 84.9 | Fine for body text |
| #2B5D72 text on black | 2.91:1 | Fails | Lc -17.1 | 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
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#79A8BE
oklch(70.6% 0.06 228.6)
-
Step 500
500
#5593AE
oklch(63.2% 0.076 228)
-
Step 600
600
#377D99
oklch(55.7% 0.082 227.4)
-
Step 700
700
#286983
oklch(49.1% 0.077 228)
-
Step 800
800 (this color)
#2B5D72
oklch(45.3% 0.064 228.1)
-
Step 900
900
#224756
oklch(37.7% 0.049 226.8)
-
Step 950
950
#152A33
oklch(27.2% 0.032 227.5)
#2B5D72 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) | #525B73 | 0.047 |
| Deuteranopia (no green cones) | #485472 | 0.041 |
| Tritanopia (no blue cones) | #006364 | 0.041 |
| Achromatopsia (no color) | #575757 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5D72
#2B5D72
oklch(45.3% 0.064 228.1)
- #734B36
#734B36
oklch(45.3% 0.064 48.3)
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 #2B5D72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Petrol #005F6A ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.041
- Dark Aqua #05696B ΔE 0.046
- Denim #3B638C ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.050
- Dusty Grape #545775 ΔE 0.053
- Slate #516572 ΔE 0.053
Use #2B5D72 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.