#12374D
Closest named color: Midnight Green (#073B4C). oklch(32.2% 0.057 238.4), rgb(18, 55, 77).
Aa
White text reads best on this color (12.50:1).
About this color
#12374D is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.057 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.015 away. White text reads best on it, at 12.50:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.67:1 |
| White text | 12.50:1 |
Values
| HEX | #12374D |
| RGB | rgb(18, 55, 77) |
| HSL | hsl(202, 62%, 19%) |
| OKLCH | oklch(32.2% 0.057 238.4) |
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 #12374D | 12.50:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #12374D | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #12374D text on white | 12.50:1 | AAA | Lc 98.2 | Preferred for body text |
| #12374D text on black | 1.67:1 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF6
oklch(93.6% 0.02 238.7)
-
Step 200
200
#C3DDF0
oklch(88.4% 0.038 239.6)
-
Step 300
300
#98C8E8
oklch(81% 0.068 237.9)
-
Step 400
400
#59AADC
oklch(70.7% 0.108 238)
-
Step 500
500
#0C93D3
oklch(63.1% 0.139 238.6)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950 (this color)
#12374D
oklch(32.2% 0.057 238.4)
#12374D 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) | #2D374E | 0.032 |
| Deuteranopia (no green cones) | #25314D | 0.027 |
| Tritanopia (no blue cones) | #003D3F | 0.039 |
| Achromatopsia (no color) | #343434 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12374D
#12374D
oklch(32.2% 0.057 238.4)
- #492B13
#492B13
oklch(32.1% 0.058 57.3)
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 #12374D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.020
- Prussian Blue #1D3557 ΔE 0.024
- Gunmetal #293241 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.042
- Onyx #343A40 ΔE 0.050
- Marine #042E60 ΔE 0.050
- Marine Blue #01386A ΔE 0.051
Use #12374D 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.