#184D97
Closest named color: Cobalt (#1E488F). oklch(43% 0.133 257.9), rgb(24, 77, 151).
Aa
White text reads best on this color (8.24:1).
About this color
#184D97 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.133 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.018 away. White text reads best on it, at 8.24:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.54:1 |
| White text | 8.24:1 |
Values
| HEX | #184D97 |
| RGB | rgb(24, 77, 151) |
| HSL | hsl(215, 73%, 34%) |
| OKLCH | oklch(43% 0.133 257.9) |
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 #184D97 | 8.24:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #184D97 | 2.54:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #184D97 text on white | 8.24:1 | AAA | Lc 88.0 | Fine for body text |
| #184D97 text on black | 2.54:1 | Fails | Lc -14.1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF6
oklch(88.6% 0.043 257.1)
-
Step 300
300
#A2C3F3
oklch(81% 0.077 257.7)
-
Step 400
400
#6EA2EE
oklch(70.8% 0.125 257.8)
-
Step 500
500
#4688E8
oklch(63.1% 0.16 257.9)
-
Step 600
600
#2670D6
oklch(55.7% 0.173 257.8)
-
Step 700
700
#185DBA
oklch(49.2% 0.161 257.8)
-
Step 800
800 (this color)
#184D97
oklch(43% 0.133 257.9)
-
Step 900
900
#1A4078
oklch(37.7% 0.105 258.3)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#184D97 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) | #22559A | 0.025 |
| Deuteranopia (no green cones) | #004996 | 0.017 |
| Tritanopia (no blue cones) | #005F6A | 0.103 |
| Achromatopsia (no color) | #4F4F4F | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184D97
#184D97
oklch(43% 0.133 257.9)
- #6A4800
#6A4800
oklch(42.9% 0.089 77.8)
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 #184D97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.018
- Dusk Blue #26538D ΔE 0.028
- Light Navy #155084 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.054
- Blueberry #464196 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.057
Use #184D97 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.