#12434D
Closest named color: Charcoal (#264653). oklch(35.5% 0.053 214.1), rgb(18, 67, 77).
Aa
White text reads best on this color (10.84:1).
About this color
#12434D is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.053 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.024 away. White text reads best on it, at 10.84:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #12434D |
| RGB | rgb(18, 67, 77) |
| HSL | hsl(190, 62%, 19%) |
| OKLCH | oklch(35.5% 0.053 214.1) |
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 #12434D | 10.84:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #12434D | 1.93:1 | Fails | Lc 9.0 | Not readable |
| #12434D text on white | 10.84:1 | AAA | Lc 94.9 | Preferred for body text |
| #12434D 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D1
oklch(81% 0.04 214.6)
-
Step 400
400
#71ABB9
oklch(70.6% 0.064 214.6)
-
Step 500
500
#4696A8
oklch(63% 0.082 214.6)
-
Step 600
600
#208093
oklch(55.5% 0.089 214.4)
-
Step 700
700
#0E6C7D
oklch(49% 0.083 214.2)
-
Step 800
800
#125866
oklch(42.6% 0.069 214.8)
-
Step 900
900 (this color)
#12434D
oklch(35.5% 0.053 214.1)
-
Step 950
950
#102B31
oklch(27.1% 0.034 214.3)
#12434D 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) | #3C414E | 0.049 |
| Deuteranopia (no green cones) | #333A4D | 0.044 |
| Tritanopia (no blue cones) | #004746 | 0.023 |
| Achromatopsia (no color) | #3D3D3D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12434D
#12434D
oklch(35.5% 0.053 214.1)
- #543129
#543129
oklch(35.4% 0.053 33.6)
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 #12434D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.028
- Midnight Green #073B4C ΔE 0.029
- Dark Teal #014D4E ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.035
- Onyx #343A40 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.052
Use #12434D 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.