#182EC1
Closest named color: Sapphire (#2138AB). oklch(41.1% 0.224 266.7), rgb(24, 46, 193).
Aa
White text reads best on this color (9.54:1).
About this color
#182EC1 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.224 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.040 away. White text reads best on it, at 9.54:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.224) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #182EC1 |
| RGB | rgb(24, 46, 193) |
| HSL | hsl(232, 78%, 43%) |
| OKLCH | oklch(41.1% 0.224 266.7) |
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 #182EC1 | 9.54:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #182EC1 | 2.19:1 | Fails | Lc 13.2 | Not readable |
| #182EC1 text on white | 9.54:1 | AAA | Lc 90.8 | Preferred for body text |
| #182EC1 text on black | 2.19:1 | Fails | Lc -11.6 | Not readable |
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 800.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C8D9FF
oklch(88.5% 0.056 266.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500
#537EFF
oklch(63.1% 0.197 266.8)
-
Step 600
600
#335DFF
oklch(55.7% 0.244 266.6)
-
Step 700
700
#213CF6
oklch(49.2% 0.27 266.6)
-
Step 800
800 (this color)
#182EC1
oklch(41.1% 0.224 266.7)
-
Step 900
900
#19319C
oklch(37.6% 0.175 266.9)
-
Step 950
950
#0E1F5B
oklch(27% 0.11 266.6)
#182EC1 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) | #004EC5 | 0.065 |
| Deuteranopia (no green cones) | #003DBE | 0.027 |
| Tritanopia (no blue cones) | #005B76 | 0.171 |
| Achromatopsia (no color) | #454545 | 0.225 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182EC1
#182EC1
oklch(41.1% 0.224 266.7)
- #5E4700
#5E4700
oklch(41.1% 0.084 87.4)
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 #182EC1, closest first.
No curated palette has a color within ΔE 0.04 of #182EC1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.040
- True Blue #010FCC ΔE 0.043
- Blue Blue #2242C7 ΔE 0.044
- Ultramarine Blue #1805DB ΔE 0.050
- Medium Blue #0000CD ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.054
- Indigo Blue #3A18B1 ΔE 0.056
- Ultramarine #2000B1 ΔE 0.059
Use #182EC1 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.