#31594F
Closest named color: Dark Green Blue (#1F6357). oklch(43.1% 0.049 176), rgb(49, 89, 79).
Aa
White text reads best on this color (7.85:1).
About this color
#31594F is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.049 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.031 away. White text reads best on it, at 7.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #31594F |
| RGB | rgb(49, 89, 79) |
| HSL | hsl(165, 29%, 27%) |
| OKLCH | oklch(43.1% 0.049 176) |
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 #31594F | 7.85:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #31594F | 2.67:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #31594F text on white | 7.85:1 | AAA | Lc 87.2 | Fine for body text |
| #31594F text on black | 2.67:1 | Fails | Lc -14.9 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CFDDD9
oklch(88.6% 0.016 177)
-
Step 300
300
#AEC7C0
oklch(80.9% 0.029 176.9)
-
Step 400
400
#83AA9F
oklch(70.6% 0.045 175.8)
-
Step 500
500
#639588
oklch(63% 0.057 176.2)
-
Step 600
600
#488072
oklch(55.7% 0.064 175.9)
-
Step 700
700
#396C5F
oklch(49.1% 0.059 175.3)
-
Step 800
800 (this color)
#31594F
oklch(43.1% 0.049 176)
-
Step 900
900
#2B4841
oklch(37.6% 0.037 177.2)
-
Step 950
950
#1A2A26
oklch(26.9% 0.023 177.2)
#31594F 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) | #56554F | 0.050 |
| Deuteranopia (no green cones) | #505050 | 0.049 |
| Tritanopia (no blue cones) | #235A56 | 0.015 |
| Achromatopsia (no color) | #525252 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31594F
#31594F
oklch(43.1% 0.049 176)
- #664551
#664551
oklch(43.1% 0.049 355.8)
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 #31594F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.034
- Deep Teal #00555A ΔE 0.040
- Dark Blue Green #005249 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Pine #2B5D34 ΔE 0.049
- Spruce #0A5F38 ΔE 0.056
- Dark Teal #014D4E ΔE 0.056
Use #31594F 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.