#2B4652
Closest named color: Charcoal (#264653). oklch(37.8% 0.039 227.9), rgb(43, 70, 82).
Aa
White text reads best on this color (9.99:1).
About this color
#2B4652 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.039 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.006 away. White text reads best on it, at 9.99:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #2B4652 |
| RGB | rgb(43, 70, 82) |
| HSL | hsl(198, 31%, 25%) |
| OKLCH | oklch(37.8% 0.039 227.9) |
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 #2B4652 | 9.99:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #2B4652 | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #2B4652 text on white | 9.99:1 | AAA | Lc 93.1 | Preferred for body text |
| #2B4652 text on black | 2.10:1 | Fails | Lc -9.3 | 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 900.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AEC5D0
oklch(81% 0.029 228.2)
-
Step 400
400
#83A7B8
oklch(70.8% 0.047 228.4)
-
Step 500
500
#6391A6
oklch(63.1% 0.059 228.2)
-
Step 600
600
#487B91
oklch(55.6% 0.065 227.6)
-
Step 700
700
#39687C
oklch(49.2% 0.06 227.6)
-
Step 800
800
#305464
oklch(42.6% 0.049 228.3)
-
Step 900
900 (this color)
#2B4652
oklch(37.8% 0.039 227.9)
-
Step 950
950
#192930
oklch(27% 0.025 227.2)
#2B4652 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) | #404553 | 0.029 |
| Deuteranopia (no green cones) | #3A4052 | 0.027 |
| Tritanopia (no blue cones) | #1A4A4A | 0.028 |
| Achromatopsia (no color) | #424242 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4652
#2B4652
oklch(37.8% 0.039 227.9)
- #533C30
#533C30
oklch(37.8% 0.038 48.7)
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 #2B4652, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.006
- Dark Grey Blue #29465B ΔE 0.016
- Charcoal Grey #3C4142 ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Teal #014D4E ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.041
- Onyx #343A40 ΔE 0.042
- Deep Teal #00555A ΔE 0.050
Use #2B4652 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.