#2152BC
Closest named color: Blue Blue (#2242C7). oklch(47.2% 0.176 262.9), rgb(33, 82, 188).
Aa
White text reads best on this color (7.00:1).
About this color
#2152BC is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.176 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.040 away. White text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #2152BC |
| RGB | rgb(33, 82, 188) |
| HSL | hsl(221, 70%, 43%) |
| OKLCH | oklch(47.2% 0.176 262.9) |
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 #2152BC | 7.00:1 | AAA | Lc -88.6 | Fine for body text |
| Black text on #2152BC | 2.99:1 | Fails | Lc 20.4 | Dividers and decoration only |
| #2152BC text on white | 7.00:1 | AAA | Lc 83.7 | Fine for body text |
| #2152BC text on black | 2.99:1 | Fails | Lc -18.3 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A4C1F8
oklch(80.9% 0.084 263)
-
Step 400
400
#739FF5
oklch(70.8% 0.135 262.8)
-
Step 500
500
#4F84F1
oklch(63.2% 0.173 262.9)
-
Step 600
600
#336AE0
oklch(55.6% 0.19 262.9)
-
Step 700
700 (this color)
#2152BC
oklch(47.2% 0.176 262.9)
-
Step 800
800
#21489D
oklch(42.6% 0.146 263.1)
-
Step 900
900
#1F3E7D
oklch(37.8% 0.113 262.6)
-
Step 950
950
#132549
oklch(27.1% 0.071 262.6)
#2152BC 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) | #0060C0 | 0.035 |
| Deuteranopia (no green cones) | #0052BA | 0.015 |
| Tritanopia (no blue cones) | #006D7F | 0.136 |
| Achromatopsia (no color) | #595959 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2152BC
#2152BC
oklch(47.2% 0.176 262.9)
- #765500
#765500
oklch(47.2% 0.097 82.4)
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 #2152BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.040
- Majorelle Blue #3F37C9 ΔE 0.063
- Sapphire #2138AB ΔE 0.068
- Mid Blue #276AB3 ΔE 0.069
- Warm Blue #4B57DB ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Dusk Blue #26538D ΔE 0.076
- Cobalt #1E488F ΔE 0.076
Use #2152BC 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.