#2B5969
Closest named color: Petrol (#005F6A). oklch(43.8% 0.057 223.2), rgb(43, 89, 105).
Aa
White text reads best on this color (7.67:1).
About this color
#2B5969 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.057 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.027 away. White text reads best on it, at 7.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #2B5969 |
| RGB | rgb(43, 89, 105) |
| HSL | hsl(195, 42%, 29%) |
| OKLCH | oklch(43.8% 0.057 223.2) |
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 #2B5969 | 7.67:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #2B5969 | 2.73:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #2B5969 text on white | 7.67:1 | AAA | Lc 86.5 | Fine for body text |
| #2B5969 text on black | 2.73:1 | Fails | Lc -15.6 | 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
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D0
oklch(80.9% 0.033 221.4)
-
Step 400
400
#7CA8B9
oklch(70.6% 0.053 223.8)
-
Step 500
500
#5993A8
oklch(63.2% 0.068 223.2)
-
Step 600
600
#3D7D93
oklch(55.7% 0.074 223.1)
-
Step 700
700
#2E697D
oklch(49% 0.069 223.2)
-
Step 800
800 (this color)
#2B5969
oklch(43.8% 0.057 223.2)
-
Step 900
900
#254753
oklch(37.7% 0.045 223)
-
Step 950
950
#162A30
oklch(27.1% 0.028 219)
#2B5969 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) | #50576A | 0.046 |
| Deuteranopia (no green cones) | #475069 | 0.041 |
| Tritanopia (no blue cones) | #005E5E | 0.037 |
| Achromatopsia (no color) | #535353 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5969
#2B5969
oklch(43.8% 0.057 223.2)
- #6D4838
#6D4838
oklch(43.9% 0.057 44.2)
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 #2B5969, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.027
- YInMn Blue #415A77 ΔE 0.036
- Deep Teal #00555A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dark Aqua #05696B ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
Use #2B5969 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.