#124DDE
Closest named color: Blue Blue (#2242C7). oklch(49% 0.227 263.4), rgb(18, 77, 222).
Aa
White text reads best on this color (6.68:1).
About this color
#124DDE is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.227 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.044 away. White text reads best on it, at 6.68:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.227) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.14:1 |
| White text | 6.68:1 |
Values
| HEX | #124DDE |
| RGB | rgb(18, 77, 222) |
| HSL | hsl(223, 85%, 47%) |
| OKLCH | oklch(49% 0.227 263.4) |
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 #124DDE | 6.68:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #124DDE | 3.14:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #124DDE text on white | 6.68:1 | AA | Lc 81.9 | Fine for body text |
| #124DDE text on black | 3.14:1 | AA large text | Lc -19.9 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4781FF
oklch(63.2% 0.197 263.3)
-
Step 600
600
#1E60FF
oklch(55.6% 0.245 263.4)
-
Step 700
700 (this color)
#124DDE
oklch(49% 0.227 263.4)
-
Step 800
800
#1241B4
oklch(42.8% 0.189 263.5)
-
Step 900
900
#15398E
oklch(37.7% 0.147 263.5)
-
Step 950
950
#0D2253
oklch(26.9% 0.094 263.8)
#124DDE 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) | #0066E3 | 0.057 |
| Deuteranopia (no green cones) | #0053DB | 0.013 |
| Tritanopia (no blue cones) | #00758F | 0.173 |
| Achromatopsia (no color) | #5C5C5C | 0.228 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124DDE
#124DDE
oklch(49% 0.227 263.4)
- #7B5A00
#7B5A00
oklch(48.9% 0.1 83.7)
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 #124DDE, closest first.
No curated palette has a color within ΔE 0.04 of #124DDE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Azul #1D5DEC ΔE 0.044
- Vibrant Blue #0339F8 ΔE 0.052
- Electric Blue #0652FF ΔE 0.052
- Warm Blue #4B57DB ΔE 0.059
- Majorelle Blue #3F37C9 ΔE 0.062
- Vivid Blue #152EFF ΔE 0.066
- Light Royal Blue #3A2EFE ΔE 0.067
Use #124DDE 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.