#124DAF
Closest named color: Blue Blue (#2242C7). oklch(44.7% 0.167 260.5), rgb(18, 77, 175).
Aa
White text reads best on this color (7.75:1).
About this color
#124DAF is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.167 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.046 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #124DAF |
| RGB | rgb(18, 77, 175) |
| HSL | hsl(217, 81%, 38%) |
| OKLCH | oklch(44.7% 0.167 260.5) |
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 #124DAF | 7.75:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #124DAF | 2.70:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #124DAF text on white | 7.75:1 | AAA | Lc 86.3 | Fine for body text |
| #124DAF text on black | 2.70:1 | Fails | Lc -15.8 | 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 800.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#679FFF
oklch(70.7% 0.153 260.6)
-
Step 500
500
#3B83FF
oklch(63.1% 0.198 260.5)
-
Step 600
600
#1468EF
oklch(55.6% 0.217 260.5)
-
Step 700
700
#0455D0
oklch(49% 0.202 260.5)
-
Step 800
800 (this color)
#124DAF
oklch(44.7% 0.167 260.5)
-
Step 900
900
#123D85
oklch(37.7% 0.13 260.3)
-
Step 950
950
#0C244E
oklch(26.9% 0.083 260.7)
#124DAF 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) | #005AB2 | 0.033 |
| Deuteranopia (no green cones) | #004CAD | 0.008 |
| Tritanopia (no blue cones) | #006676 | 0.129 |
| Achromatopsia (no color) | #525252 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124DAF
#124DAF
oklch(44.7% 0.167 260.5)
- #6F4E00
#6F4E00
oklch(44.8% 0.093 80.5)
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 #124DAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.046
- Sapphire #2138AB ΔE 0.049
- Cobalt #1E488F ΔE 0.053
- Dusk Blue #26538D ΔE 0.061
- Blueberry #464196 ΔE 0.067
- Majorelle Blue #3F37C9 ΔE 0.070
- Light Navy #155084 ΔE 0.072
- Denim Blue #3B5B92 ΔE 0.075
Use #124DAF 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.