#1B474C
Closest named color: Charcoal (#264653). oklch(37% 0.049 205.4), rgb(27, 71, 76).
Aa
White text reads best on this color (10.23:1).
About this color
#1B474C is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.049 and its hue 205°. 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 10.23:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #1B474C |
| RGB | rgb(27, 71, 76) |
| HSL | hsl(186, 48%, 20%) |
| OKLCH | oklch(37% 0.049 205.4) |
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 #1B474C | 10.23:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #1B474C | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #1B474C text on white | 10.23:1 | AAA | Lc 93.6 | Preferred for body text |
| #1B474C text on black | 2.05:1 | Fails | Lc -8.9 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDDF
oklch(88.5% 0.019 204.8)
-
Step 300
300
#A6C8CC
oklch(80.9% 0.037 205.2)
-
Step 400
400
#74ACB2
oklch(70.8% 0.059 204.4)
-
Step 500
500
#4D979F
oklch(63.2% 0.074 204.7)
-
Step 600
600
#2B818A
oklch(55.7% 0.081 205)
-
Step 700
700
#1B6D75
oklch(49.1% 0.076 204.8)
-
Step 800
800
#1A595F
oklch(42.8% 0.063 204.2)
-
Step 900
900 (this color)
#1B474C
oklch(37% 0.049 205.4)
-
Step 950
950
#122B2E
oklch(27.1% 0.031 205.7)
#1B474C 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) | #41444C | 0.048 |
| Deuteranopia (no green cones) | #3A3E4C | 0.045 |
| Tritanopia (no blue cones) | #004A48 | 0.020 |
| Achromatopsia (no color) | #414141 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B474C
#1B474C
oklch(37% 0.049 205.4)
- #573532
#573532
oklch(36.9% 0.05 25.2)
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 #1B474C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.018
- Dark Teal #014D4E ΔE 0.022
- Dark Grey Blue #29465B ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Green #005249 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.042
- Deep Teal #00555A ΔE 0.045
Use #1B474C 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.