#215DAE
Closest named color: Mid Blue (#276AB3). oklch(48.5% 0.143 257.3), rgb(33, 93, 174).
Aa
White text reads best on this color (6.47:1).
About this color
#215DAE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.143 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.037 away. White text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #215DAE |
| RGB | rgb(33, 93, 174) |
| HSL | hsl(214, 68%, 41%) |
| OKLCH | oklch(48.5% 0.143 257.3) |
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 #215DAE | 6.47:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #215DAE | 3.24:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #215DAE text on white | 6.47:1 | AA | Lc 81.7 | Fine for body text |
| #215DAE text on black | 3.24:1 | AA large text | Lc -20.2 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300
#A5C3EE
oklch(81% 0.069 257.4)
-
Step 400
400
#73A2E5
oklch(70.6% 0.111 257.3)
-
Step 500
500
#4E8ADE
oklch(63.2% 0.142 257.1)
-
Step 600
600
#3072CB
oklch(55.7% 0.153 257)
-
Step 700
700 (this color)
#215DAE
oklch(48.5% 0.143 257.3)
-
Step 800
800
#1F4E8E
oklch(42.8% 0.118 257.1)
-
Step 900
900
#1F4172
oklch(37.7% 0.093 257.8)
-
Step 950
950
#132743
oklch(27.2% 0.058 257.1)
#215DAE 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) | #3165B1 | 0.028 |
| Deuteranopia (no green cones) | #0B58AC | 0.019 |
| Tritanopia (no blue cones) | #00707D | 0.108 |
| Achromatopsia (no color) | #5E5E5E | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215DAE
#215DAE
oklch(48.5% 0.143 257.3)
- #7F5600
#7F5600
oklch(48.5% 0.102 76.8)
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 #215DAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.048
- French Blue #436BAD ΔE 0.054
- Peacock Blue #016795 ΔE 0.055
- Dusky Blue #475F94 ΔE 0.055
- Dusk Blue #26538D ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.061
- Denim #3B638C ΔE 0.064
Use #215DAE 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.