#1E4E56
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.5% 0.053 210.1), rgb(30, 78, 86).
Aa
White text reads best on this color (9.21:1).
About this color
#1E4E56 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.053 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.021 away. White text reads best on it, at 9.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #1E4E56 |
| RGB | rgb(30, 78, 86) |
| HSL | hsl(189, 48%, 23%) |
| OKLCH | oklch(39.5% 0.053 210.1) |
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 #1E4E56 | 9.21:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #1E4E56 | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #1E4E56 text on white | 9.21:1 | AAA | Lc 91.1 | Preferred for body text |
| #1E4E56 text on black | 2.27:1 | Fails | Lc -11.3 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE1
oklch(88.4% 0.022 211)
-
Step 300
300
#A4C8CF
oklch(80.9% 0.04 210.7)
-
Step 400
400
#70ACB7
oklch(70.7% 0.064 210.3)
-
Step 500
500
#4697A5
oklch(63.2% 0.081 210.4)
-
Step 600
600
#1E8190
oklch(55.6% 0.088 210.3)
-
Step 700
700
#0C6D7A
oklch(49.1% 0.082 209.6)
-
Step 800
800
#115964
oklch(42.8% 0.068 210.5)
-
Step 900
900 (this color)
#1E4E56
oklch(39.5% 0.053 210.1)
-
Step 950
950
#102B2F
oklch(27% 0.033 208.2)
#1E4E56 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) | #474B57 | 0.050 |
| Deuteranopia (no green cones) | #3F4556 | 0.046 |
| Tritanopia (no blue cones) | #005250 | 0.024 |
| Achromatopsia (no color) | #484848 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E4E56
#1E4E56
oklch(39.5% 0.053 210.1)
- #603B35
#603B35
oklch(39.5% 0.054 29.7)
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 #1E4E56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.021
- Dark Teal #014D4E ΔE 0.023
- Deep Teal #00555A ΔE 0.024
- Charcoal #264653 ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.031
- Dark Blue Green #005249 ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.052
- Petrol #005F6A ΔE 0.055
Use #1E4E56 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.