#215971
Closest named color: Petrol (#005F6A). oklch(43.8% 0.07 229.7), rgb(33, 89, 113).
Aa
White text reads best on this color (7.68:1).
About this color
#215971 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.070 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.028 away. White text reads best on it, at 7.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #215971 |
| RGB | rgb(33, 89, 113) |
| HSL | hsl(198, 55%, 29%) |
| OKLCH | oklch(43.8% 0.07 229.7) |
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 #215971 | 7.68:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #215971 | 2.73:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #215971 text on white | 7.68:1 | AAA | Lc 86.5 | Fine for body text |
| #215971 text on black | 2.73:1 | Fails | Lc -15.6 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A7C6D6
oklch(80.9% 0.04 230.3)
-
Step 400
400
#75A9C2
oklch(70.7% 0.066 229.5)
-
Step 500
500
#4F93B2
oklch(63.1% 0.083 229.6)
-
Step 600
600
#2F7D9E
oklch(55.6% 0.09 229.7)
-
Step 700
700
#206987
oklch(49% 0.084 229.8)
-
Step 800
800 (this color)
#215971
oklch(43.8% 0.07 229.7)
-
Step 900
900
#1F4759
oklch(37.7% 0.054 229.9)
-
Step 950
950
#132A34
oklch(27.1% 0.034 228.3)
#215971 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) | #4D5872 | 0.049 |
| Deuteranopia (no green cones) | #425071 | 0.042 |
| Tritanopia (no blue cones) | #006061 | 0.043 |
| Achromatopsia (no color) | #535353 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215971
#215971
oklch(43.8% 0.07 229.7)
- #71462E
#71462E
oklch(43.8% 0.07 49.4)
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 #215971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.028
- YInMn Blue #415A77 ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.041
- Deep Teal #00555A ΔE 0.045
- Light Navy #155084 ΔE 0.048
- Dusk Blue #26538D ΔE 0.055
- Dark Aqua #05696B ΔE 0.055
Use #215971 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.