#216EAE
Closest named color: Mid Blue (#276AB3). oklch(52.5% 0.124 248.3), rgb(33, 110, 174).
Aa
White text reads best on this color (5.37:1).
About this color
#216EAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.124 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.015 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #216EAE |
| RGB | rgb(33, 110, 174) |
| HSL | hsl(207, 68%, 41%) |
| OKLCH | oklch(52.5% 0.124 248.3) |
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 #216EAE | 5.37:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #216EAE | 3.90:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #216EAE text on white | 5.37:1 | AA | Lc 76.4 | Fine for body text |
| #216EAE text on black | 3.90:1 | AA large text | Lc -25.4 | 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 600.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A5C4E4
oklch(80.8% 0.056 249.4)
-
Step 400
400
#73A6D6
oklch(70.8% 0.089 247.7)
-
Step 500
500
#4C8ECB
oklch(63% 0.115 248.4)
-
Step 600
600 (this color)
#216EAE
oklch(52.5% 0.124 248.3)
-
Step 700
700
#1E649F
oklch(49.1% 0.116 248.6)
-
Step 800
800
#1C5281
oklch(42.8% 0.096 248.6)
-
Step 900
900
#1D4467
oklch(37.6% 0.075 248.2)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#216EAE 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) | #5071B1 | 0.044 |
| Deuteranopia (no green cones) | #3B65AD | 0.029 |
| Tritanopia (no blue cones) | #007D86 | 0.088 |
| Achromatopsia (no color) | #6A6A6A | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #216EAE
#216EAE
oklch(52.5% 0.124 248.3)
- #955B00
#955B00
oklch(52.4% 0.115 67.7)
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 #216EAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.015
- French Blue #436BAD ΔE 0.027
- Flat Blue #3C73A8 ΔE 0.029
- Muted Blue #3B719F ΔE 0.033
- Nice Blue #107AB0 ΔE 0.034
- Ocean Blue #03719C ΔE 0.034
- Windows Blue #3778BF ΔE 0.042
- Peacock Blue #016795 ΔE 0.046
Use #216EAE 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.