#264F55
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.1% 0.047 207.9), rgb(38, 79, 85).
Aa
White text reads best on this color (9.00:1).
About this color
#264F55 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.047 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.013 away. White text reads best on it, at 9.00:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #264F55 |
| RGB | rgb(38, 79, 85) |
| HSL | hsl(188, 38%, 24%) |
| OKLCH | oklch(40.1% 0.047 207.9) |
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 #264F55 | 9.00:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #264F55 | 2.33:1 | Fails | Lc 13.4 | Not readable |
| #264F55 text on white | 9.00:1 | AAA | Lc 90.6 | Preferred for body text |
| #264F55 text on black | 2.33:1 | Fails | Lc -11.8 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A7C7CC
oklch(80.8% 0.035 208)
-
Step 400
400
#77ABB3
oklch(70.8% 0.056 208)
-
Step 500
500
#5096A0
oklch(63.1% 0.072 207.5)
-
Step 600
600
#30808B
oklch(55.6% 0.078 207.8)
-
Step 700
700
#216C76
oklch(49.1% 0.073 207.8)
-
Step 800
800
#1E5860
oklch(42.7% 0.06 207.9)
-
Step 900
900 (this color)
#264F55
oklch(40.1% 0.047 207.9)
-
Step 950
950
#132B2E
oklch(27.1% 0.03 206.1)
#264F55 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) | #494C55 | 0.045 |
| Deuteranopia (no green cones) | #424755 | 0.042 |
| Tritanopia (no blue cones) | #075251 | 0.024 |
| Achromatopsia (no color) | #494949 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #264F55
#264F55
oklch(40.1% 0.047 207.9)
- #5F3E3A
#5F3E3A
oklch(40.1% 0.047 27)
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 #264F55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.013
- Deep Teal #00555A ΔE 0.025
- Dark Teal #014D4E ΔE 0.028
- Charcoal #264653 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.034
- Dark Blue Green #005249 ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.050
- Petrol #005F6A ΔE 0.053
Use #264F55 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.