#214F5B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.1% 0.054 217.5), rgb(33, 79, 91).
Aa
White text reads best on this color (8.99:1).
About this color
#214F5B is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.054 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.023 away. White text reads best on it, at 8.99:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #214F5B |
| RGB | rgb(33, 79, 91) |
| HSL | hsl(192, 47%, 24%) |
| OKLCH | oklch(40.1% 0.054 217.5) |
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 #214F5B | 8.99:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #214F5B | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #214F5B text on white | 8.99:1 | AAA | Lc 90.5 | Preferred for body text |
| #214F5B text on black | 2.33:1 | Fails | Lc -11.8 | 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
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A4C8D2
oklch(81% 0.041 216.5)
-
Step 400
400
#71ABBB
oklch(70.7% 0.065 217)
-
Step 500
500
#4896AA
oklch(63.2% 0.082 216.9)
-
Step 600
600
#228096
oklch(55.7% 0.09 217.4)
-
Step 700
700
#126C80
oklch(49.2% 0.083 217.6)
-
Step 800
800
#145868
oklch(42.7% 0.069 217.6)
-
Step 900
900 (this color)
#214F5B
oklch(40.1% 0.054 217.5)
-
Step 950
950
#112B31
oklch(27.1% 0.034 214.8)
#214F5B 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) | #474D5C | 0.047 |
| Deuteranopia (no green cones) | #3F465B | 0.043 |
| Tritanopia (no blue cones) | #005353 | 0.028 |
| Achromatopsia (no color) | #494949 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #214F5B
#214F5B
oklch(40.1% 0.054 217.5)
- #613E33
#613E33
oklch(40.2% 0.053 38.2)
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 #214F5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.023
- Deep Teal #00555A ΔE 0.025
- Charcoal #264653 ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.030
- Dark Teal #014D4E ΔE 0.031
- Dark Blue Green #005249 ΔE 0.041
- Petrol #005F6A ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.056
Use #214F5B 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.