#12383D
Closest named color: Midnight Green (#073B4C). oklch(31.6% 0.043 207.2), rgb(18, 56, 61).
Aa
White text reads best on this color (12.65:1).
About this color
#12383D is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.043 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.026 away. White text reads best on it, at 12.65:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.65:1 |
| White text | 12.65:1 |
Values
| HEX | #12383D |
| RGB | rgb(18, 56, 61) |
| HSL | hsl(187, 54%, 15%) |
| OKLCH | oklch(31.6% 0.043 207.2) |
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 #12383D | 12.65:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #12383D | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #12383D text on white | 12.65:1 | AAA | Lc 98.5 | Preferred for body text |
| #12383D text on black | 1.65:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C5DFE3
oklch(88.6% 0.028 207.8)
-
Step 300
300
#9ACAD1
oklch(80.8% 0.051 207.3)
-
Step 400
400
#5DAFBB
oklch(70.7% 0.082 207.9)
-
Step 500
500
#169BAA
oklch(63.2% 0.105 207.3)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950 (this color)
#12383D
oklch(31.6% 0.043 207.2)
#12383D 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) | #33363D | 0.042 |
| Deuteranopia (no green cones) | #2C313D | 0.038 |
| Tritanopia (no blue cones) | #003B39 | 0.018 |
| Achromatopsia (no color) | #333333 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12383D
#12383D
oklch(31.6% 0.043 207.2)
- #452926
#452926
oklch(31.5% 0.043 26.4)
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 #12383D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.033
- Gunmetal #293241 ΔE 0.035
- Onyx #343A40 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.053
- Pakistan Green #283618 ΔE 0.061
- Charcoal #264653 ΔE 0.061
Use #12383D 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.