#13434B
Closest named color: Charcoal (#264653). oklch(35.5% 0.052 210.7), rgb(19, 67, 75).
Aa
White text reads best on this color (10.86:1).
About this color
#13434B is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.052 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.025 away. White text reads best on it, at 10.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #13434B |
| RGB | rgb(19, 67, 75) |
| HSL | hsl(189, 60%, 18%) |
| OKLCH | oklch(35.5% 0.052 210.7) |
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 #13434B | 10.86:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #13434B | 1.93:1 | Fails | Lc 9.0 | Not readable |
| #13434B text on white | 10.86:1 | AAA | Lc 94.9 | Preferred for body text |
| #13434B text on black | 1.93:1 | Fails | Lc -7.7 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A5C8CF
oklch(81% 0.039 211.1)
-
Step 400
400
#72ACB6
oklch(70.8% 0.062 209.5)
-
Step 500
500
#4897A5
oklch(63.2% 0.08 210.7)
-
Step 600
600
#228190
oklch(55.7% 0.087 210.6)
-
Step 700
700
#126D7A
oklch(49.2% 0.08 209.9)
-
Step 800
800
#145963
oklch(42.8% 0.067 209.4)
-
Step 900
900 (this color)
#13434B
oklch(35.5% 0.052 210.7)
-
Step 950
950
#112B2F
oklch(27% 0.033 208.6)
#13434B 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) | #3C404B | 0.048 |
| Deuteranopia (no green cones) | #343A4B | 0.045 |
| Tritanopia (no blue cones) | #004645 | 0.019 |
| Achromatopsia (no color) | #3D3D3D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13434B
#13434B
oklch(35.5% 0.052 210.7)
- #54312B
#54312B
oklch(35.5% 0.053 30.4)
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 #13434B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.029
- Midnight Green #073B4C ΔE 0.030
- Dark Teal #014D4E ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.038
- Onyx #343A40 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.051
Use #13434B 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.