#1C4750
Closest named color: Charcoal (#264653). oklch(37.2% 0.049 213.5), rgb(28, 71, 80).
Aa
White text reads best on this color (10.16:1).
About this color
#1C4750 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.049 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.012 away. White text reads best on it, at 10.16:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.06:1 |
| White text | 10.16:1 |
Values
| HEX | #1C4750 |
| RGB | rgb(28, 71, 80) |
| HSL | hsl(190, 48%, 21%) |
| OKLCH | oklch(37.2% 0.049 213.5) |
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 #1C4750 | 10.16:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #1C4750 | 2.06:1 | Fails | Lc 10.5 | Not readable |
| #1C4750 text on white | 10.16:1 | AAA | Lc 93.4 | Preferred for body text |
| #1C4750 text on black | 2.06:1 | Fails | Lc -9.1 | 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
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A6C7CF
oklch(80.8% 0.037 214)
-
Step 400
400
#75ABB7
oklch(70.8% 0.059 213.1)
-
Step 500
500
#4D96A5
oklch(63.2% 0.076 212.7)
-
Step 600
600
#2B8090
oklch(55.7% 0.083 212.6)
-
Step 700
700
#1D6C7B
oklch(49.2% 0.077 213.3)
-
Step 800
800
#1B5864
oklch(42.7% 0.064 213.4)
-
Step 900
900 (this color)
#1C4750
oklch(37.2% 0.049 213.5)
-
Step 950
950
#132A30
oklch(26.9% 0.031 216.7)
#1C4750 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) | #404551 | 0.045 |
| Deuteranopia (no green cones) | #383F50 | 0.040 |
| Tritanopia (no blue cones) | #004B4A | 0.025 |
| Achromatopsia (no color) | #414141 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C4750
#1C4750
oklch(37.2% 0.049 213.5)
- #57362F
#57362F
oklch(37% 0.049 32.6)
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 #1C4750, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.012
- Dark Teal #014D4E ΔE 0.024
- Dark Grey Blue #29465B ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.043
- Dark Blue Green #005249 ΔE 0.044
- Deep Teal #00555A ΔE 0.044
Use #1C4750 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.