#266F6B
Closest named color: Dark Aquamarine (#017371). oklch(49.6% 0.071 190), rgb(38, 111, 107).
Aa
White text reads best on this color (5.88:1).
About this color
#266F6B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.071 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.016 away. White text reads best on it, at 5.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #266F6B |
| RGB | rgb(38, 111, 107) |
| HSL | hsl(177, 49%, 29%) |
| OKLCH | oklch(49.6% 0.071 190) |
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 #266F6B | 5.88:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #266F6B | 3.56:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #266F6B text on white | 5.88:1 | AA | Lc 79.2 | Fine for body text |
| #266F6B text on black | 3.56:1 | AA large text | Lc -22.6 | 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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDC
oklch(88.4% 0.018 192.6)
-
Step 300
300
#A8C8C5
oklch(80.8% 0.035 189.5)
-
Step 400
400
#78ACA8
oklch(70.7% 0.055 190)
-
Step 500
500
#529793
oklch(63% 0.07 190.6)
-
Step 600
600
#33827D
oklch(55.7% 0.077 189.4)
-
Step 700
700 (this color)
#266F6B
oklch(49.6% 0.071 190)
-
Step 800
800
#205956
oklch(42.6% 0.059 190.4)
-
Step 900
900
#214947
oklch(37.6% 0.045 191.1)
-
Step 950
950
#142B2A
oklch(27% 0.029 191.9)
#266F6B 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) | #69696B | 0.076 |
| Deuteranopia (no green cones) | #5D616C | 0.070 |
| Tritanopia (no blue cones) | #00726E | 0.015 |
| Achromatopsia (no color) | #646464 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #266F6B
#266F6B
oklch(49.6% 0.071 190)
- #855159
#855159
oklch(49.6% 0.07 10)
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 #266F6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.016
- Deep Turquoise #017374 ΔE 0.018
- Dark Aqua #05696B ΔE 0.026
- Bluegreen #017A79 ΔE 0.034
- Deep Aqua #08787F ΔE 0.035
- Dark Green Blue #1F6357 ΔE 0.044
- Teal #008080 ΔE 0.052
- Slate #516572 ΔE 0.055
Use #266F6B 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.