#215BA8
Closest named color: Denim Blue (#3B5B92). oklch(47.7% 0.137 257), rgb(33, 91, 168).
Aa
White text reads best on this color (6.71:1).
About this color
#215BA8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.137 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.041 away. White text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #215BA8 |
| RGB | rgb(33, 91, 168) |
| HSL | hsl(214, 67%, 39%) |
| OKLCH | oklch(47.7% 0.137 257) |
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 #215BA8 | 6.71:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #215BA8 | 3.12:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #215BA8 text on white | 6.71:1 | AA | Lc 82.7 | Fine for body text |
| #215BA8 text on black | 3.12:1 | AA large text | Lc -19.2 | 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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300
#A6C3EC
oklch(81% 0.066 257)
-
Step 400
400
#75A2E2
oklch(70.6% 0.106 257.2)
-
Step 500
500
#508ADA
oklch(63.1% 0.136 256.8)
-
Step 600
600
#3372C8
oklch(55.6% 0.148 257.1)
-
Step 700
700 (this color)
#215BA8
oklch(47.7% 0.137 257)
-
Step 800
800
#214E8C
oklch(42.7% 0.114 257.2)
-
Step 900
900
#204270
oklch(37.8% 0.089 256.6)
-
Step 950
950
#132741
oklch(27% 0.055 255.7)
#215BA8 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) | #3262AB | 0.026 |
| Deuteranopia (no green cones) | #1356A6 | 0.018 |
| Tritanopia (no blue cones) | #006D79 | 0.105 |
| Achromatopsia (no color) | #5C5C5C | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215BA8
#215BA8
oklch(47.7% 0.137 257)
- #7C5400
#7C5400
oklch(47.7% 0.1 76.9)
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 #215BA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.041
- Mid Blue #276AB3 ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
- Peacock Blue #016795 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.052
- French Blue #436BAD ΔE 0.059
- Denim #3B638C ΔE 0.060
Use #215BA8 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.