#334B49
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.3% 0.03 189.5), rgb(51, 75, 73).
Aa
White text reads best on this color (9.36:1).
About this color
#334B49 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.014 away. White text reads best on it, at 9.36:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #334B49 |
| RGB | rgb(51, 75, 73) |
| HSL | hsl(175, 19%, 25%) |
| OKLCH | oklch(39.3% 0.03 189.5) |
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 #334B49 | 9.36:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #334B49 | 2.24:1 | Fails | Lc 12.4 | Not readable |
| #334B49 text on white | 9.36:1 | AAA | Lc 91.6 | Preferred for body text |
| #334B49 text on black | 2.24:1 | Fails | Lc -10.8 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDB
oklch(88.5% 0.013 190.9)
-
Step 300
300
#B1C5C3
oklch(80.8% 0.022 189.5)
-
Step 400
400
#88A8A5
oklch(70.7% 0.035 189.4)
-
Step 500
500
#69938F
oklch(63.1% 0.046 188.7)
-
Step 600
600
#507D79
oklch(55.6% 0.05 188.7)
-
Step 700
700
#416966
oklch(49% 0.045 189.8)
-
Step 800
800
#365653
oklch(42.7% 0.038 188.4)
-
Step 900
900 (this color)
#334B49
oklch(39.3% 0.03 189.5)
-
Step 950
950
#1C2928
oklch(26.9% 0.018 190.2)
#334B49 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) | #484949 | 0.031 |
| Deuteranopia (no green cones) | #444549 | 0.030 |
| Tritanopia (no blue cones) | #2B4C4A | 0.010 |
| Achromatopsia (no color) | #474747 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334B49
#334B49
oklch(39.3% 0.03 189.5)
- #543F42
#543F42
oklch(39.2% 0.03 9)
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 #334B49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.014
- Charcoal #264653 ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.032
- Dark Teal #014D4E ΔE 0.037
- Dark Blue Green #005249 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.041
- Deep Teal #00555A ΔE 0.044
- Onyx #343A40 ΔE 0.054
Use #334B49 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.