#1C4D5E
Closest named color: Dark Grey Blue (#29465B). oklch(39.5% 0.059 224.3), rgb(28, 77, 94).
Aa
White text reads best on this color (9.24:1).
About this color
#1C4D5E is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.059 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 9.24:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #1C4D5E |
| RGB | rgb(28, 77, 94) |
| HSL | hsl(195, 54%, 24%) |
| OKLCH | oklch(39.5% 0.059 224.3) |
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 #1C4D5E | 9.24:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #1C4D5E | 2.27:1 | Fails | Lc 12.9 | Not readable |
| #1C4D5E text on white | 9.24:1 | AAA | Lc 91.1 | Preferred for body text |
| #1C4D5E text on black | 2.27:1 | Fails | Lc -11.2 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C7D6
oklch(80.8% 0.044 225.1)
-
Step 400
400
#6EABC2
oklch(70.8% 0.071 223.9)
-
Step 500
500
#4295B2
oklch(63.1% 0.091 224.1)
-
Step 600
600
#187F9E
oklch(55.6% 0.099 224.2)
-
Step 700
700
#036B87
oklch(49.1% 0.092 224.2)
-
Step 800
800
#0D576E
oklch(42.6% 0.076 225.1)
-
Step 900
900 (this color)
#1C4D5E
oklch(39.5% 0.059 224.3)
-
Step 950
950
#0F2A34
oklch(26.9% 0.038 225.1)
#1C4D5E 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) | #434B5F | 0.046 |
| Deuteranopia (no green cones) | #3A445E | 0.041 |
| Tritanopia (no blue cones) | #005252 | 0.034 |
| Achromatopsia (no color) | #474747 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C4D5E
#1C4D5E
oklch(39.5% 0.059 224.3)
- #613C2B
#613C2B
oklch(39.6% 0.059 45.3)
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 #1C4D5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal #264653 ΔE 0.025
- Deep Teal #00555A ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Teal #014D4E ΔE 0.033
- Dark Blue Green #005249 ΔE 0.048
- Petrol #005F6A ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.058
Use #1C4D5E 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.