#276B5B
Closest named color: Dark Green Blue (#1F6357). oklch(48% 0.073 174.8), rgb(39, 107, 91).
Aa
White text reads best on this color (6.28:1).
About this color
#276B5B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.073 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.027 away. White text reads best on it, at 6.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #276B5B |
| RGB | rgb(39, 107, 91) |
| HSL | hsl(166, 47%, 29%) |
| OKLCH | oklch(48% 0.073 174.8) |
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 #276B5B | 6.28:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #276B5B | 3.34:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #276B5B text on white | 6.28:1 | AA | Lc 81.1 | Fine for body text |
| #276B5B text on black | 3.34:1 | AA large text | Lc -20.8 | 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 700.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED8
oklch(88.6% 0.02 172.7)
-
Step 300
300
#AAC8BF
oklch(80.8% 0.035 175.4)
-
Step 400
400
#7BAD9E
oklch(70.8% 0.058 174)
-
Step 500
500
#579887
oklch(63.1% 0.072 175.1)
-
Step 600
600
#398270
oklch(55.5% 0.079 174.7)
-
Step 700
700 (this color)
#276B5B
oklch(48% 0.073 174.8)
-
Step 800
800
#255A4D
oklch(42.8% 0.061 174.8)
-
Step 900
900
#244A40
oklch(37.8% 0.047 174.5)
-
Step 950
950
#162B25
oklch(26.9% 0.03 173.8)
#276B5B 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) | #67645A | 0.076 |
| Deuteranopia (no green cones) | #5D5D5C | 0.073 |
| Tritanopia (no blue cones) | #006C66 | 0.021 |
| Achromatopsia (no color) | #606060 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #276B5B
#276B5B
oklch(48% 0.073 174.8)
- #7E4C60
#7E4C60
oklch(48% 0.073 354.6)
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 #276B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.027
- Dark Aqua #05696B ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.036
- Deep Turquoise #017374 ΔE 0.039
- Bluegreen #017A79 ΔE 0.054
- Petrol #005F6A ΔE 0.056
- Deep Aqua #08787F ΔE 0.058
- Pine #2B5D34 ΔE 0.062
Use #276B5B 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.