#12454E
Closest named color: Charcoal (#264653). oklch(36.2% 0.054 211.8), rgb(18, 69, 78).
Aa
White text reads best on this color (10.56:1).
About this color
#12454E is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.054 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.021 away. White text reads best on it, at 10.56:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #12454E |
| RGB | rgb(18, 69, 78) |
| HSL | hsl(189, 63%, 19%) |
| OKLCH | oklch(36.2% 0.054 211.8) |
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 #12454E | 10.56:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #12454E | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #12454E text on white | 10.56:1 | AAA | Lc 94.3 | Preferred for body text |
| #12454E text on black | 1.98:1 | Fails | Lc -8.3 | 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
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A3C8D0
oklch(80.9% 0.041 212.3)
-
Step 400
400
#6FACB8
oklch(70.7% 0.065 211.4)
-
Step 500
500
#4497A7
oklch(63.2% 0.083 212.1)
-
Step 600
600
#1A8192
oklch(55.6% 0.091 211.9)
-
Step 700
700
#056D7C
oklch(49.1% 0.084 211.4)
-
Step 800
800
#0E5965
oklch(42.7% 0.07 211.5)
-
Step 900
900 (this color)
#12454E
oklch(36.2% 0.054 211.8)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#12454E 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) | #3E424F | 0.051 |
| Deuteranopia (no green cones) | #353C4E | 0.046 |
| Tritanopia (no blue cones) | #004948 | 0.021 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12454E
#12454E
oklch(36.2% 0.054 211.8)
- #57322B
#57322B
oklch(36.1% 0.056 31.5)
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 #12454E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.021
- Dark Teal #014D4E ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.034
- Midnight Green #073B4C ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.046
- Onyx #343A40 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.048
Use #12454E 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.