#215770
Closest named color: Petrol (#005F6A). oklch(43.2% 0.07 231.6), rgb(33, 87, 112).
Aa
White text reads best on this color (7.88:1).
About this color
#215770 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.070 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.032 away. White text reads best on it, at 7.88:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #215770 |
| RGB | rgb(33, 87, 112) |
| HSL | hsl(199, 54%, 28%) |
| OKLCH | oklch(43.2% 0.07 231.6) |
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 #215770 | 7.88:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #215770 | 2.66:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #215770 text on white | 7.88:1 | AAA | Lc 87.1 | Fine for body text |
| #215770 text on black | 2.66:1 | Fails | Lc -15.0 | 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 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
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#77A8C2
oklch(70.6% 0.065 232)
-
Step 500
500
#5193B3
oklch(63.2% 0.083 231.1)
-
Step 600
600
#317C9F
oklch(55.5% 0.091 232)
-
Step 700
700
#236988
oklch(49.2% 0.084 231.4)
-
Step 800
800 (this color)
#215770
oklch(43.2% 0.07 231.6)
-
Step 900
900
#204759
oklch(37.8% 0.054 230.4)
-
Step 950
950
#142934
oklch(26.9% 0.034 232.8)
#215770 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) | #4B5671 | 0.047 |
| Deuteranopia (no green cones) | #404E70 | 0.041 |
| Tritanopia (no blue cones) | #005E5F | 0.044 |
| Achromatopsia (no color) | #515151 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215770
#215770
oklch(43.2% 0.07 231.6)
- #6F452B
#6F452B
oklch(43.3% 0.07 51.7)
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 #215770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.043
- Deep Teal #00555A ΔE 0.043
- Light Navy #155084 ΔE 0.045
- Dusk Blue #26538D ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.054
Use #215770 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.