#215CAF
Closest named color: Mid Blue (#276AB3). oklch(48.4% 0.146 257.9), rgb(33, 92, 175).
Aa
White text reads best on this color (6.53:1).
About this color
#215CAF is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.146 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.040 away. White text reads best on it, at 6.53:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.21:1 |
| White text | 6.53:1 |
Values
| HEX | #215CAF |
| RGB | rgb(33, 92, 175) |
| HSL | hsl(215, 68%, 41%) |
| OKLCH | oklch(48.4% 0.146 257.9) |
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 #215CAF | 6.53:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #215CAF | 3.21:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #215CAF text on white | 6.53:1 | AA | Lc 81.9 | Fine for body text |
| #215CAF text on black | 3.21:1 | AA large text | Lc -20.0 | 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
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A5C3EF
oklch(81% 0.071 257.9)
-
Step 400
400
#73A2E6
oklch(70.7% 0.112 257.6)
-
Step 500
500
#4E89DF
oklch(63.1% 0.144 257.9)
-
Step 600
600
#3171CD
oklch(55.6% 0.157 258)
-
Step 700
700 (this color)
#215CAF
oklch(48.4% 0.146 257.9)
-
Step 800
800
#1F4D90
oklch(42.7% 0.122 258.2)
-
Step 900
900
#1F4173
oklch(37.8% 0.095 258.1)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#215CAF 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) | #2E64B2 | 0.026 |
| Deuteranopia (no green cones) | #0058AD | 0.020 |
| Tritanopia (no blue cones) | #00707D | 0.112 |
| Achromatopsia (no color) | #5E5E5E | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215CAF
#215CAF
oklch(48.4% 0.146 257.9)
- #7E5600
#7E5600
oklch(48.4% 0.101 77.5)
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 #215CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.050
- French Blue #436BAD ΔE 0.056
- Dusk Blue #26538D ΔE 0.057
- Dusky Blue #475F94 ΔE 0.058
- Peacock Blue #016795 ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.063
- Denim #3B638C ΔE 0.067
Use #215CAF 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.