#12BFFF
Closest named color: Deep Sky Blue (#00BFFF). oklch(75.6% 0.152 232.1), rgb(18, 191, 255).
Aa
Black text reads best on this color (9.92:1).
About this color
#12BFFF is a medium-light, vivid blue. In OKLCH its lightness is 76%, its chroma 0.152 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.002 away. Black text reads best on it, at 9.92:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.92:1 |
| White text | 2.11:1 |
Values
| HEX | #12BFFF |
| RGB | rgb(18, 191, 255) |
| HSL | hsl(196, 100%, 54%) |
| OKLCH | oklch(75.6% 0.152 232.1) |
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 #12BFFF | 2.11:1 | Fails | Lc -45.4 | Large or bold text, headings |
| Black text on #12BFFF | 9.92:1 | AAA | Lc 63.1 | Content text, not long reading |
| #12BFFF text on white | 2.11:1 | Fails | Lc 40.8 | Non-text elements, placeholder text |
| #12BFFF text on black | 9.92:1 | AAA | Lc -61.4 | Content text, not long reading |
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 400.
-
Step 50
50
#EDF7FD
oklch(97% 0.013 233.7)
-
Step 100
100
#D9EEF9
oklch(93.7% 0.027 230.4)
-
Step 200
200
#B7E0F6
oklch(88.5% 0.053 231.5)
-
Step 300
300
#7ECCF4
oklch(80.9% 0.096 232)
-
Step 400
400 (this color)
#12BFFF
oklch(75.6% 0.152 232.1)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#12BFFF 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) | #9FBDFF | 0.098 |
| Deuteranopia (no green cones) | #82AAFE | 0.082 |
| Tritanopia (no blue cones) | #00D0D5 | 0.088 |
| Achromatopsia (no color) | #B2B2B2 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12BFFF
#12BFFF
oklch(75.6% 0.152 232.1)
- #FA914B
#FA914B
oklch(75.6% 0.152 52)
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 #12BFFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.002
- Bright Sky Blue #02CCFE ΔE 0.036
- Vivid Sky Blue #4CC9F0 ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.068
- Carolina Blue #8AB8FE ΔE 0.075
- Sky #82CAFC ΔE 0.076
- Aqua Blue #02D8E9 ΔE 0.085
- Light Sky Blue #87CEFA ΔE 0.087
Use #12BFFF 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.