#215377
Closest named color: Deep Sea Blue (#015482). oklch(42.6% 0.08 243.2), rgb(33, 83, 119).
Aa
White text reads best on this color (8.17:1).
About this color
#215377 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.080 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.022 away. White text reads best on it, at 8.17:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #215377 |
| RGB | rgb(33, 83, 119) |
| HSL | hsl(205, 57%, 30%) |
| OKLCH | oklch(42.6% 0.08 243.2) |
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 #215377 | 8.17:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #215377 | 2.56:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #215377 text on white | 8.17:1 | AAA | Lc 88.0 | Fine for body text |
| #215377 text on black | 2.56:1 | Fails | Lc -14.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A7C5DD
oklch(80.9% 0.047 242.4)
-
Step 400
400
#77A6CC
oklch(70.6% 0.075 243.5)
-
Step 500
500
#5290BF
oklch(63.1% 0.096 243)
-
Step 600
600
#3479AB
oklch(55.5% 0.104 243.3)
-
Step 700
700
#266693
oklch(49.1% 0.097 243.1)
-
Step 800
800 (this color)
#215377
oklch(42.6% 0.08 243.2)
-
Step 900
900
#214560
oklch(37.7% 0.062 243.2)
-
Step 950
950
#142938
oklch(27.1% 0.039 241.3)
#215377 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) | #435479 | 0.038 |
| Deuteranopia (no green cones) | #374B76 | 0.030 |
| Tritanopia (no blue cones) | #005C60 | 0.057 |
| Achromatopsia (no color) | #4F4F4F | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215377
#215377
oklch(42.6% 0.08 243.2)
- #6D4419
#6D4419
oklch(42.6% 0.08 63.6)
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 #215377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.022
- Light Navy #155084 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.036
- Dusk Blue #26538D ΔE 0.038
- YInMn Blue #415A77 ΔE 0.043
- Petrol #005F6A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
- Twilight Blue #0A437A ΔE 0.055
Use #215377 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.