#215873
Closest named color: Petrol (#005F6A). oklch(43.7% 0.072 233.3), rgb(33, 88, 115).
Aa
White text reads best on this color (7.75:1).
About this color
#215873 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.072 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.033 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #215873 |
| RGB | rgb(33, 88, 115) |
| HSL | hsl(200, 55%, 29%) |
| OKLCH | oklch(43.7% 0.072 233.3) |
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 #215873 | 7.75:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #215873 | 2.70:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #215873 text on white | 7.75:1 | AAA | Lc 86.7 | Fine for body text |
| #215873 text on black | 2.70:1 | Fails | Lc -15.4 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#76A8C4
oklch(70.6% 0.067 233.5)
-
Step 500
500
#4F92B5
oklch(63% 0.086 233.2)
-
Step 600
600
#2F7CA1
oklch(55.5% 0.094 233)
-
Step 700
700
#21688A
oklch(49% 0.087 233.7)
-
Step 800
800 (this color)
#215873
oklch(43.7% 0.072 233.3)
-
Step 900
900
#1F475B
oklch(37.8% 0.056 232.7)
-
Step 950
950
#132935
oklch(26.9% 0.036 234.1)
#215873 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) | #4B5774 | 0.047 |
| Deuteranopia (no green cones) | #404F73 | 0.040 |
| Tritanopia (no blue cones) | #005F61 | 0.046 |
| Achromatopsia (no color) | #525252 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215873
#215873
oklch(43.7% 0.072 233.3)
- #714629
#714629
oklch(43.8% 0.073 53.6)
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 #215873, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.038
- Light Navy #155084 ΔE 0.043
- Deep Teal #00555A ΔE 0.047
- Dusk Blue #26538D ΔE 0.050
- Denim #3B638C ΔE 0.057
Use #215873 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.