#31544F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.8% 0.042 184.3), rgb(49, 84, 79).
Aa
White text reads best on this color (8.36:1).
About this color
#31544F is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.042 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.017 away. White text reads best on it, at 8.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #31544F |
| RGB | rgb(49, 84, 79) |
| HSL | hsl(171, 26%, 26%) |
| OKLCH | oklch(41.8% 0.042 184.3) |
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 #31544F | 8.36:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #31544F | 2.51:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #31544F text on white | 8.36:1 | AAA | Lc 88.8 | Fine for body text |
| #31544F text on black | 2.51:1 | Fails | Lc -13.4 | 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 800.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B0C6C2
oklch(80.9% 0.025 183.6)
-
Step 400
400
#86A9A3
oklch(70.7% 0.039 183.6)
-
Step 500
500
#67948D
oklch(63.2% 0.05 184)
-
Step 600
600
#4D7E77
oklch(55.6% 0.054 184.3)
-
Step 700
700
#3E6A64
oklch(49% 0.05 184.7)
-
Step 800
800 (this color)
#31544F
oklch(41.8% 0.042 184.3)
-
Step 900
900
#2D4744
oklch(37.6% 0.032 186.8)
-
Step 950
950
#1B2A28
oklch(27.1% 0.021 185.7)
#31544F 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) | #51504F | 0.045 |
| Deuteranopia (no green cones) | #4B4C4F | 0.042 |
| Tritanopia (no blue cones) | #245552 | 0.013 |
| Achromatopsia (no color) | #4E4E4E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31544F
#31544F
oklch(41.8% 0.042 184.3)
- #60434A
#60434A
oklch(41.7% 0.041 3.1)
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 #31544F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.017
- Deep Teal #00555A ΔE 0.033
- Dark Blue Green #005249 ΔE 0.037
- Dark Teal #014D4E ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.046
- Petrol #005F6A ΔE 0.050
- Charcoal #264653 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.058
Use #31544F 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.