#216AB8
Closest named color: Mid Blue (#276AB3). oklch(52.2% 0.142 253.6), rgb(33, 106, 184).
Aa
White text reads best on this color (5.49:1).
About this color
#216AB8 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.142 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.008 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.81:1 |
| White text | 5.49:1 |
Values
| HEX | #216AB8 |
| RGB | rgb(33, 106, 184) |
| HSL | hsl(211, 70%, 43%) |
| OKLCH | oklch(52.2% 0.142 253.6) |
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 #216AB8 | 5.49:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #216AB8 | 3.81:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #216AB8 text on white | 5.49:1 | AA | Lc 77.0 | Fine for body text |
| #216AB8 text on black | 3.81:1 | AA large text | Lc -24.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4ED
oklch(81% 0.069 253.4)
-
Step 400
400
#6FA4E3
oklch(70.7% 0.109 253.5)
-
Step 500
500
#468CDC
oklch(63.2% 0.14 253.5)
-
Step 600
600
#2474C9
oklch(55.6% 0.152 253.5)
-
Step 700
700 (this color)
#216AB8
oklch(52.2% 0.142 253.6)
-
Step 800
800
#154F8D
oklch(42.6% 0.118 253.7)
-
Step 900
900
#194270
oklch(37.6% 0.091 253.6)
-
Step 950
950
#102742
oklch(27% 0.058 253.9)
#216AB8 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) | #4370BB | 0.035 |
| Deuteranopia (no green cones) | #2763B6 | 0.019 |
| Tritanopia (no blue cones) | #007D88 | 0.106 |
| Achromatopsia (no color) | #696969 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #216AB8
#216AB8
oklch(52.2% 0.142 253.6)
- #8F5E00
#8F5E00
oklch(52.2% 0.111 73.8)
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 #216AB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.008
- French Blue #436BAD ΔE 0.032
- Windows Blue #3778BF ΔE 0.045
- Flat Blue #3C73A8 ΔE 0.045
- Nice Blue #107AB0 ΔE 0.049
- Muted Blue #3B719F ΔE 0.052
- Ocean Blue #03719C ΔE 0.054
- Peacock Blue #016795 ΔE 0.059
Use #216AB8 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.