#1D424E
Closest named color: Charcoal (#264653). oklch(35.7% 0.047 221.8), rgb(29, 66, 78).
Aa
White text reads best on this color (10.81:1).
About this color
#1D424E is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.047 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.018 away. White text reads best on it, at 10.81:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.94:1 |
| White text | 10.81:1 |
Values
| HEX | #1D424E |
| RGB | rgb(29, 66, 78) |
| HSL | hsl(195, 46%, 21%) |
| OKLCH | oklch(35.7% 0.047 221.8) |
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 #1D424E | 10.81:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #1D424E | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #1D424E text on white | 10.81:1 | AAA | Lc 94.9 | Preferred for body text |
| #1D424E text on black | 1.94:1 | 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
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE2
oklch(88.4% 0.019 222.2)
-
Step 300
300
#A9C6D1
oklch(80.9% 0.035 222.7)
-
Step 400
400
#79A9BA
oklch(70.7% 0.057 221.9)
-
Step 500
500
#5594A9
oklch(63.2% 0.072 221.6)
-
Step 600
600
#377E94
oklch(55.7% 0.078 221.3)
-
Step 700
700
#286A7E
oklch(49.1% 0.073 221.3)
-
Step 800
800
#235667
oklch(42.6% 0.061 223)
-
Step 900
900 (this color)
#1D424E
oklch(35.7% 0.047 221.8)
-
Step 950
950
#152A31
oklch(27.1% 0.03 221.5)
#1D424E 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) | #3B404F | 0.039 |
| Deuteranopia (no green cones) | #343B4E | 0.035 |
| Tritanopia (no blue cones) | #004646 | 0.029 |
| Achromatopsia (no color) | #3D3D3D | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D424E
#1D424E
oklch(35.7% 0.047 221.8)
- #523429
#523429
oklch(35.8% 0.047 40.9)
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 #1D424E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.023
- Dark Grey Blue #29465B ΔE 0.029
- Midnight Green #073B4C ΔE 0.031
- Onyx #343A40 ΔE 0.038
- Dark Teal #014D4E ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.050
Use #1D424E 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.