#184EBB
Closest named color: Blue Blue (#2242C7). oklch(46.1% 0.181 262.2), rgb(24, 78, 187).
Aa
White text reads best on this color (7.37:1).
About this color
#184EBB is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.181 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.032 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #184EBB |
| RGB | rgb(24, 78, 187) |
| HSL | hsl(220, 77%, 41%) |
| OKLCH | oklch(46.1% 0.181 262.2) |
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 #184EBB | 7.37:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #184EBB | 2.84:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #184EBB text on white | 7.37:1 | AAA | Lc 84.9 | Fine for body text |
| #184EBB text on black | 2.84:1 | Fails | Lc -17.1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A2C1FA
oklch(80.9% 0.088 262.4)
-
Step 400
400
#709FF7
oklch(70.7% 0.139 262.1)
-
Step 500
500
#4A84F4
oklch(63.1% 0.179 262)
-
Step 600
600
#2E6AE3
oklch(55.6% 0.195 262.2)
-
Step 700
700 (this color)
#184EBB
oklch(46.1% 0.181 262.2)
-
Step 800
800
#1D489F
oklch(42.6% 0.15 262.3)
-
Step 900
900
#1D3E7F
oklch(37.8% 0.117 262.1)
-
Step 950
950
#11254A
oklch(27.1% 0.074 261.5)
#184EBB 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) | #005DBF | 0.037 |
| Deuteranopia (no green cones) | #004FB9 | 0.010 |
| Tritanopia (no blue cones) | #006A7D | 0.139 |
| Achromatopsia (no color) | #565656 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184EBB
#184EBB
oklch(46.1% 0.181 262.2)
- #725200
#725200
oklch(46.1% 0.095 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 #184EBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.032
- Sapphire #2138AB ΔE 0.057
- Majorelle Blue #3F37C9 ΔE 0.059
- Cobalt #1E488F ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.073
- Dusk Blue #26538D ΔE 0.077
- Blueberry #464196 ΔE 0.077
- Warm Blue #4B57DB ΔE 0.078
Use #184EBB 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.