#314B40
Closest named color: Dark Slate Gray (#2F4F4F). oklch(38.8% 0.037 166.2), rgb(49, 75, 64).
Aa
White text reads best on this color (9.49:1).
About this color
#314B40 is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.037 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.024 away. White text reads best on it, at 9.49:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #314B40 |
| RGB | rgb(49, 75, 64) |
| HSL | hsl(155, 21%, 24%) |
| OKLCH | oklch(38.8% 0.037 166.2) |
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 #314B40 | 9.49:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #314B40 | 2.21:1 | Fails | Lc 12.0 | Not readable |
| #314B40 text on white | 9.49:1 | AAA | Lc 91.9 | Preferred for body text |
| #314B40 text on black | 2.21:1 | Fails | Lc -10.5 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DDD7
oklch(88.6% 0.016 166.7)
-
Step 300
300
#B1C7BC
oklch(81% 0.028 164.2)
-
Step 400
400
#87AA9A
oklch(70.7% 0.045 165.5)
-
Step 500
500
#689582
oklch(63.2% 0.057 166.5)
-
Step 600
600
#4F7F6B
oklch(55.6% 0.061 166)
-
Step 700
700
#3F6B59
oklch(49% 0.057 166.1)
-
Step 800
800
#345749
oklch(42.5% 0.047 166.9)
-
Step 900
900 (this color)
#314B40
oklch(38.8% 0.037 166.2)
-
Step 950
950
#1B2A24
oklch(26.9% 0.023 167.9)
#314B40 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) | #4A483F | 0.037 |
| Deuteranopia (no green cones) | #454441 | 0.036 |
| Tritanopia (no blue cones) | #2B4B48 | 0.014 |
| Achromatopsia (no color) | #464646 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #314B40
#314B40
oklch(38.8% 0.037 166.2)
- #533D49
#533D49
oklch(38.8% 0.036 345)
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 #314B40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.024
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.037
- Dark Teal #014D4E ΔE 0.038
- Charcoal #264653 ΔE 0.043
- Deep Teal #00555A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.055
- Evergreen #05472A ΔE 0.057
Use #314B40 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.