#274B53
Closest named color: Charcoal (#264653). oklch(38.9% 0.044 213.7), rgb(39, 75, 83).
Aa
White text reads best on this color (9.46:1).
About this color
#274B53 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.044 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.017 away. White text reads best on it, at 9.46:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.21:1 |
| White text | 9.46:1 |
Values
| HEX | #274B53 |
| RGB | rgb(39, 75, 83) |
| HSL | hsl(191, 36%, 24%) |
| OKLCH | oklch(38.9% 0.044 213.7) |
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 #274B53 | 9.46:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #274B53 | 2.21:1 | Fails | Lc 12.2 | Not readable |
| #274B53 text on white | 9.46:1 | AAA | Lc 91.8 | Preferred for body text |
| #274B53 text on black | 2.21:1 | Fails | Lc -10.6 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDCE0
oklch(88.4% 0.018 214.4)
-
Step 300
300
#AAC7CD
oklch(81% 0.032 211.6)
-
Step 400
400
#7BAAB4
oklch(70.8% 0.052 212.3)
-
Step 500
500
#5794A2
oklch(63.1% 0.067 214.1)
-
Step 600
600
#397E8D
oklch(55.5% 0.073 214)
-
Step 700
700
#2B6B78
oklch(49.2% 0.068 213.2)
-
Step 800
800
#255762
oklch(42.7% 0.056 214.3)
-
Step 900
900 (this color)
#274B53
oklch(38.9% 0.044 213.7)
-
Step 950
950
#162A2F
oklch(27% 0.027 215.5)
#274B53 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) | #454953 | 0.040 |
| Deuteranopia (no green cones) | #3E4453 | 0.035 |
| Tritanopia (no blue cones) | #0F4E4D | 0.025 |
| Achromatopsia (no color) | #464646 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274B53
#274B53
oklch(38.9% 0.044 213.7)
- #5A3C35
#5A3C35
oklch(38.9% 0.044 33.6)
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 #274B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.017
- Dark Slate Gray #2F4F4F ΔE 0.019
- Dark Grey Blue #29465B ΔE 0.025
- Dark Teal #014D4E ΔE 0.028
- Deep Teal #00555A ΔE 0.035
- Dark Blue Green #005249 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.054
Use #274B53 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.