#215E73
Closest named color: Petrol (#005F6A). oklch(45.2% 0.07 224.5), rgb(33, 94, 115).
Aa
White text reads best on this color (7.20:1).
About this color
#215E73 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.070 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.023 away. White text reads best on it, at 7.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #215E73 |
| RGB | rgb(33, 94, 115) |
| HSL | hsl(195, 55%, 29%) |
| OKLCH | oklch(45.2% 0.07 224.5) |
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 #215E73 | 7.20:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #215E73 | 2.91:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #215E73 text on white | 7.20:1 | AAA | Lc 84.8 | Fine for body text |
| #215E73 text on black | 2.91:1 | Fails | Lc -17.2 | 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
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D5
oklch(80.9% 0.041 224.8)
-
Step 400
400
#73AABF
oklch(70.7% 0.065 223.9)
-
Step 500
500
#4A94AF
oklch(63% 0.084 224.5)
-
Step 600
600
#287E9B
oklch(55.6% 0.091 224.8)
-
Step 700
700
#186A84
oklch(49% 0.085 224.6)
-
Step 800
800 (this color)
#215E73
oklch(45.2% 0.07 224.5)
-
Step 900
900
#1C4857
oklch(37.8% 0.054 223.5)
-
Step 950
950
#122A33
oklch(27% 0.034 224.8)
#215E73 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) | #525C74 | 0.054 |
| Deuteranopia (no green cones) | #475473 | 0.047 |
| Tritanopia (no blue cones) | #006465 | 0.037 |
| Achromatopsia (no color) | #575757 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215E73
#215E73
oklch(45.2% 0.07 224.5)
- #764934
#764934
oklch(45.2% 0.07 45.5)
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 #215E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.023
- YInMn Blue #415A77 ΔE 0.034
- Dark Aqua #05696B ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.048
- Denim #3B638C ΔE 0.051
- Deep Teal #00555A ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.054
Use #215E73 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.